Reverseengineering is the process engineering process of discovering the technological principles of a human ... the original. Reverseengineering has its origins in the analysis of hardware for commercial ... yes first2 J. H., II last2 Cross title ReverseEngineering and Design Recovery A Taxonomy journal ..., incomplete, or otherwise unavailable documentation. ref A Survey of ReverseEngineering and Program ... ref Motivation Reasons for reverseengineering Interoperability . Lost documentation Reverseengineering ... corrected. Reverseengineering of machines As computer aided design CAD has become more popular, reverseengineering has become a viable method to create a 3D virtual model of an existing ... software. ref T. Varady, R. R. Martin, J. Cox, ReverseEngineering of Geometric Models An Introduction, Computer Aided Design 29 4 , 255 268, 1997. ref The reverseengineering process involves ... design CAD model. Reverseengineering is also used by businesses to bring existing physical geometry ... and analysing products, but the objective is to find opportunities for cost cutting. Reverseengineering of software The term reverseengineering as applied to software means different things to different ... a taxonomy . From their paper, they state, Reverseengineering is the process of analyzing a subject ... last Chikofsky first E.J. coauthors J.H. Cross II year 1990 month January title ReverseEngineering ... R. title Software Reuse and ReverseEngineering in Practice year 1992 publisher Chapman & Hall location ... model . Reverseengineering is a process of examination only the software system under consideration ... technology is used to deter both reverseengineering and re engineering of proprietary software and software powered systems. In practice, two main types of reverseengineering emerge. In the first ... code for the software are regarded as reverseengineering. This second usage of the term is the one most people are familiar with. Reverseengineering of software can make use of the clean room ... more details
Multiple issues orphan October 2009 unreferenced October 2009 The Certified ReverseEngineering Analyst CREA is a professional certification administered by the IACRB. The CREA is a 50 question multiple choice exam, that is followed by a practical examination that requires the candidate to reverse engineer a supplied binary. The binary in the practical is typically a live malware sample. Candidates have 2 hours to complete the multiple choice exam, and 60 days to complete the practical. Candidates must achieve a 70 score or higher in order to pass the exam. The cost of the exam is 499 USD. Category Engineering occupations software eng stub ... more details
Infobox Book name Reversing Secrets of ReverseEngineering title orig translator image Image Reversing secrets of reverseengineering cover.jpg image caption author Eldad Eilam illustrator cover artist country United States , Canada , China , Japan , EMEA language English language English series subject Reverseengineering genre publisher Wiley Publishing pub date 2005 english pub date media type pages 595 isbn 0764574817 dewey 005.1 22 congress QA76.758 .E35 2005 oclc 60359199 preceded by followed by Reversing Secrets of ReverseEngineering is a textbook written by Eldad Eilam on the subject of reverseengineering software, mainly within a Microsoft Windows environment. It covers the use of debugger s and other low level tools for working with binaries. Of particular interest is that it uses OllyDbg in examples, and is therefore one of the few practical, modern books on the subject that uses popular, real world tools to facilitate learning. The book is designed for independent study and does not contain problem sets, but it is also used as a course book in some university classes. Citation needed date April 2010 The book covers several different aspects of reverseengineering, and demonstrates what can be accomplished How copy protection and Digital rights management DRM technologies can be defeated, and how they can be made stronger. How malicious software such as computer worm worms can be analyzed and neutralized. How to obfuscated code obfuscate code so that it becomes more difficult to reverse engineer. The book also includes a detailed discussion of the legal aspects of reverseengineering, and examines some famous court cases and rulings that were related to reverseengineering. Considering its relatively narrow subject matter, Reversing is a bestseller that has ... C Deciphering Program Data. Editions Reversing Secrets of ReverseEngineering , English, 2005 ... popular items in Software Design, Testing & Engineering. accessdate 2008 07 25 ref Chapter Outline ... more details
Summary Downloaded from http media.wiley.com product data coverImage300 17 07645748 0764574817.jpg Copyrighted by Wiley Publishing Fair use rationale Image is used to represent the book. No free image of the book s cover can exist since the book is a copyrighted work. Licensing Non free book cover Non free media rationale Article Reversing Secrets of Reverse Engineering Description Book Cover Source Derived from a digital capture photo scan of the book cover creator of this digital version is irrelevant as the copyright in all equivalent images is still held by the same party . Copyright held by the publisher or the artist. Claimed as fair use regardless. Portion Book cover only, a small portion of the commercial product. Low resolution Yes Purpose The image serves as the primary means of visual identification of the subject the book . It illustrates educational articles about the book from which the cover illustration was taken. Replaceability There is no free equivalent of this book cover, so the image cannot be replaced by a free image. other information The use of the cover will not affect the value of the original work or limit the copyright holder s rights or ability to distribute the original. In particular, copies could not be used to make illegal copies of the book. category Book covers Reversing Secrets of Reverse Engineering ... more details
Reverse may refer to wiktionary reverse The reverse side of currency or a flag see Obverse and reverse A change in the direction of the movement of a motor or other prime mover see Transmission mechanics an engineering design see Reverseengineering a jet engine s thrust see Thrust reversal Reverse lookup as in Reverse telephone directory Reverse DNS lookup Backmasking In sports and other games Reverse American football , a trick play in American football Reverse cricket , a cricket delivery Reverse bridge , a type of bid in contract bridge See also Reversing disambiguation Reversal disambiguation Auto reverse disambig be x old de Revers fr Revers lb Revers ja pt Reverse ru ... more details
Infobox Album See Wikipedia WikiProject Albums Name In Reverse Type Studio album Artist Matthew Sweet Cover msinreverse.jpg Released October 12, 1999 Recorded May June 1999 Genre Alternative rock Length 55 26 Label Volcano Records Producer Matthew Sweet , Greg Leisz , Fred Maher , Jim Scott Reviews Allmusic Rating 4 5 Allmusic class album id r430051 pure url yes link Rolling Stone Rating 3.5 5 http www.rollingstone.com artists matthewsweet albums album 222974 review 5941618 in reverse link Last album Blue Sky on Mars br 1997 This album In Reverse br 1999 Next album Time Capsule Best of 90 00 br 2000 In Reverse is the seventh album by alternative rock musician Matthew Sweet . It was released on Volcano Records in 1999. While not known as one of his most impressive albums via sales, it does attempt some unconventional tracking. Sweet combines three bass guitar lines on the song Thunderstorm , and other selections, such as If Time Permits , hint of sound song reversal as implied in the album s title http www.popmatters.com music reviews s sweetmatthew in.shtml . Effectively, Sweet attempts to reverse subtle would be conventional pop riffs and solos to make them sound like they are being played backwards. Some may find this ironic because Sweet s conventional sound, which was established on his first six albums, still endures and remains distinctive. Track listing All tracks composed by Matthew Sweet Millennium Blues If Time Permits Beware My Love Faith in You Hide Future Shock Split Personality I Should Never Have Let You Know Trade Places What Matters Write Your Own Song Worse to Live Untitled Thunderstorm Personnel Matthew Sweet vocals, guitar, bass, organ, synthesizer, percussion Bruce Fowler trombone Walt Fowler trumpet, flugelhorn Rick Cunha acoustic guitar Jim Keltner drums Victor Bisetti percussion Don Heffington percussion Carol Kaye bass Greg Kurstin piano, organ, harpsichord Greg Leisz guitar, pedal steel Fred Maher drums, percussion Tony Marsico acoustic bass ... more details
File MUTCD W1 4.svg right 100px In civil engineering , a reverse curve is a section of the horizontal alignment of a route highway or railroad in which a curve to the left or right is followed immediately by a curve in the opposite direction. On highways in the United States of America United States reverse curves are often announced by the posting of a W1 4L sign left right reverse curve or a W1 4R sign right left reverse curve , as called for in the Manual on Uniform Traffic Control Devices . In banking , the term reverse curve refers to a situation in which short term lending rates are higher than long term rates. Category Rail transport Category Transport engineering rail stub engineering stub ... more details
unreferenced date November 2010 Orphan date November 2010 Reverse Architecture is a process of deducing the underlying architecture and design of a system by observing its behaviour. It has its roots in the field of ReverseEngineering . There are a variety of techniques available, most notable being Architecture Driven Modelling References reflist See also Object Management Group Software Modernization ReverseEngineering Software Mining Category Architecture ... more details
Mergeto Comet programming date June 2008 Mergeto Ajax programming date June 2008 Reverse Ajax refers to an Ajax programming Ajax design pattern that uses long lived HTTP connections to enable Latency engineering low latency communication between a web server and a web browser browser . Basically it is a way of sending data from client to server and a mechanism for pushing server data back to the browser. ref cite book title Comet and Reverse Ajax The Next Generation Ajax 2.0 first Dave last Crane coauthors McCarthy, Phil publisher Apress isbn 1590599985 year 2008 month July language English ref ref cite web url http today.java.net pub a today 2007 03 22 developing applications using reverse ajax.html title Developing Applications using Reverse Ajax first Katherine last Martin publisher java.net, O Reilly and CollabNet date 2007 03 22 ref This server client communication takes one of two forms Polling computer science Client polling the client repeatedly queries polls the server and waits for an answer. Push technology Server pushing a connection between a server and client is kept open and the server sends data when available. Reverse Ajax describes the implementation of either of these models, or a combination of both. The design pattern is also known as Ajax Push , Full Duplex Ajax ... the message hello client1 polls the server client1 receives the message hello With reverse Ajax ... to all clients Less traffic is generated with Reverse Ajax and messages are transferred with less delay Latency engineering low latency . References reflist External links http www.obviously.com tech tips slow load technique The Slow Load Technique Reverse AJAX Simulating Server Push in a Standard Web Browser http gmapsdotnetcontrol.blogspot.com 2006 08 exploring reverse ajax ajax.html Exploring Reverse Ajax http ajaxian.com archives reverse ajax with dwr Reverse Ajax with DWR a Java Ajax framework ... Software architecture Category Web 2.0 Category XML comp sci stub mk Reverse Ajax ... more details
Reverse geocoding is the process of back reverse coding of a point location latitude, longitude to a readable ... and routing services, reverse geocoding is a critical component of mobile location based service s and Enhanced ... to understand by the end user. Reverse geocoding can be carried out systematically by services which .... This approach to reverse geocoding does not return actual addresses, only estimates of what should be there based on the predetermined range. Alternatively, coordinates for reverse geocoding can also ... limitations of geocoding are similar with reverse geocoding. The accuracy and timeliness of the reference layer used to reverse geocode a coordinate will have a significant impact on the accuracy of the results. Reverse geocoding services have typically not been public due to the need for extensive computing resources and currently updated and large databases. However, public reverse geocoding ... of these services include the GeoNames reverse geocoding web service which has tools to identify ... line data set as the reference layer for reverse geocoding. ref name geonames http www.geonames.org export reverse geocoding.html GeoNames Reverse Geocoding Services ref Google has also published a reverse geocoding API which can be adapted for online reverse geocoding tools, which uses the same street ... services.html ReverseGeocoding Google Codesource reverse Geocoding API ref Privacy Concerns Geocoding and reverse geocoding have raised potential privacy concerns, especially regarding the ability to reverse ... which can be used to identify individuals or reverse geocoded to obtain a street address of the individual ... in other journalistic sources. The ability to reverse engineer maps and obtain readable location information ... confidentiality and GIS re engineering mortality locations from published maps about Hurricane Katrina ... of georeferencing and reverse geocoding of published maps to elucidate sensitive or private information ... abstract space on which to display spatial patterns. Footnotes references Reflist DEFAULTSORT Reverse ... more details
A reverse walkthrough is when the reader or consumer of a technical product takes the author through it. A reverse walkthrough is a confirmation that the consumers of a technical product have the same understanding as the author of that product. The author s ask questions about the content to confirm that the reader has understood it. This is common in software engineering for software reviews or use case business process reviews when the developer reads the source use case process back to the author. The reverse walkthrough should be made when the consumers of the technical product have reviewed it and there is a risk that their understanding may not be reflective of the original intent. Terms Used Here Technical Product here can refer to a workflow, software code, use case specification or diagram that is fairly complex. Consumers of a technical product are those engineers that need to interpret the code, specification or diagram. Objectives and participants A reverse walkthrough is meant to confirm a common understanding about the contents from consumers of a technical product. Often the author may ask, what is meant by or how will you implement this flow? . A walkthrough is normally organized and directed by the author of the technical document. Any combination of interested or technically qualified personnel from within or outside the project may be included, such as the Analyst, Designer, Architect, Developer and Quality Assurance engineers. See also Software walkthrough Category Software review ... more details
Orphan date April 2010 The reverse salient refers to a backward bulge in the advancing line of a military ... battle lines. The significance of the reverse salient lies in the idea that in its presence ... effort in bringing the reverse salient section forward, in line with the rest of the military front ... systems, whereby the reverse salient refers to a component of the system that, due to its ... system achieving its targeted development. Hughes names these problematic sub systems reverse ... Pinch, The MIT Press, USA, pp. 51 82. ref . Reverse salients in technological system evolution A reverse ... protrusion along an object s profile or a line of battle ref name hughes2 . Hence, reverse salients are the backward projections along similar, continuous lines. The reverse salient subsequently refers ... lack of sufficient performance. In turn, the reverse salient hampers the progress or prevents the fulfillment ..., reverse salients can be technical elements such as electric motor motors and capacitor s of an electric ... reverse salients limit system development, the further development of the system lies in the correction of the reverse salient, where correction is attained through incremental or radical innovation s. The reverse salient denotes a focusing device, in the words of Nathan Rosenberg ref name ... theory stakeholders , which strive to remove it through innovation. It is possible that the reverse ... to successfully correct the reverse salient. However, radical innovations can lead to the creation ... current system could not ref name hughes . Hence, the reverse salient is a useful concept for analyzing ... 125 Dedehayir, O. 2009, Bibliometric study of the reverse salient concept , Journal of Industrial Engineering and Management, Vol 2, No 3. ref http www.jiem.org index.php jiem article view 125 , because .... More than technical components, these factors may also be social components. Subsequently, reverse .... ref . The reverse salient refers to an extremely complex situation in which individuals, groups ... more details
Reverse lookup may refer to Reverse telephone directory Reverse DNS lookup Method for verifying that the correct translation has been chosen when using a bilingual dictionary disambig Long comment to avoid being listed on short pages ... more details
Reverse computation is a computer software software application of the concept of reversible computing ... 99 PhD bookmarked.pdf publisher Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science accessdate 2009 04 06 ref . The concept of reverse computation is somewhat simpler than reversible computing in that reverse computation is only required to restore the equivalent ... instructions. Reversible computing concepts have been successfully applied as reverse computation ... Reverse execution of programs url http portal.acm.org citation.cfm?id 312079 journal ACM SIGPLAN Notices ... en Informatique et en Automatique INRIA accessdate ref Reverse Computation for Parallel Discrete Event Simulation File Rc table.png thumb right List of operations that are reverse computable and their costs. Based on the successful application of Reverse Computation concepts in other software ... parallel simulations using reverse computation url http www.cs.uga.edu maria classes CSCI8220 papers reverse carothers.pdf journal ACM Transactions on Modeling and Computer Simulation volume 9 ... accessdate 2009 04 06 ref suggest the application of reverse computation to reduce state saving overheads in parallel discrete event simulation PDES . They define an approach based on reverse event codes ... per event . The key property that reverse computation exploits is that a majority of the operations ... reversible. History of Reverse Computation as applied to Parallel Discrete Event Simulation File ... Machinery accessdate 2009 04 06 ref To date, the technique known as Reverse Computation has ... on reverse computation at the hardware level, but included descriptions of both an instruction set architecture and a high level programming language R for a processor based on reverse computation. ref ... websites of his publications on http www.cise.ufl.edu research revcomp writing.html reverse computation ... of Reverse Computation as an alternative rollback mechanism in optimistically synchronized parallel ... more details
Reverse cowgirl may refer to Woman on top sex position Reverse cowgirl , a sex position Reverse Cowgirl song Reverse Cowgirl song , a 2010 song on T Pain s album RevolveR disambig Short pages monitor This long comment was added to the page to prevent it from being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Long comment. Please do not remove the monitor template without removing the comment as well. ... more details
refimprove date August 2010 Reverse Echo phenomenon echo or reverb , also known as backwards echo , is a sound effect created as the result of recording an echo or delayed signal of an audio recording whilst being played backwards. The original recording is then played forwards accompanied by the recording of the echo or delayed signal which now precedes the original signal. Development The Beatles had used used the effect in 1966 Revolver I m Only Sleeping reverse reverb and backwards guitar solo ... ref music.columbia.edu mando HTML RecordedSound2011.pdf ref Guitarist and producer Jimmy Page lays claim to the invention of this effect, stating that he originally developed the method when recording the single Ten Little Indians Harry Nilsson song Ten Little Indians with The Yardbirds in 1967 . ref Brad Tolinski and Greg Di Bendetto, Light and Shade , Guitar World , January 1998. ref He later used it on a number of Led Zeppelin tracks, including You Shook Me and Whole Lotta Love . In an interview he gave to Guitar World magazine in 1993, Page explained cquote During one session with The Yardbirds , we were recording Ten Little Indians , which was an extremely silly song that featured a truly awful brass arrangement. In fact, the whole track sounded terrible. In a desperate attempt to salvage it, I hit upon an idea. I said, Look, turn the tape over and employ the echo for the brass on a spare track. Then turn it back over and we ll get the echo preceding the signal. The result was very interesting it made the track sound like it was going backwards. Later, when we recorded You Shook Me , I told the engineer, Glyn Johns , that I wanted to use backwards echo on the end. He said ... with Jimmy Page , Guitar World magazine, 1993 ref Usage Reverse reverb is commonly used in shoegaze , particularly by such bands as My Bloody Valentine band My Bloody Valentine . Use in other media Reverse ... Category Acoustics Category Musical techniques Category Audio engineering fr cho invers ... more details
Reverse charge may mean In placing telephone calls, reversing charges is also known as a Collect call . With rechargeable batteries, a mistake in use or charging may lead to Reverse charging . the accrual of VAT by the buyer of goods or services Disambig Category Telephony ... more details
Unreferenced auto yes date December 2009 Image 3 ball reverse cascade movie.gif right frame An illustration of the three ball reverse cascade. The reverse cascade is a juggling pattern in which the props follow the same path as the cascade juggling cascade , but with time going backwards, hence the reverse . The pattern is performed with an odd number of props. As in the cascade, props are thrown from alternating hands and each prop is caught in the opposite hand from which it was thrown. The key difference between a regular cascade and the reverse cascade from a juggler s point of view is that one throws each object over rather than under the others. While in a cascade objects are caught on the outside of the pattern on the far left and right and thrown from closer to the middle of the pattern, causing each ball to pass under the ball previously thrown, in a reverse cascade objects are caught near the middle of the pattern and thrown from the outside, causing each ball to pass above the ball previously thrown. Thus from the juggler s perspective the left hand moves in a clockwise motion, and the right hand in a counterclockwise motion. The reverse cascade is generally considered to be more difficult to perform than the cascade. Citation needed date September 2010 Juggling patterns DEFAULTSORT Reverse Cascade Category Juggling patterns and tricks Juggling stub ... more details
Reverse phase RP refer to Reversed phase chromatography , any chromatographic method that uses a non polar stationary phase Reverse phase protein lysate microarray , a micro cell lysate dot blot that allows measurement of protein expression levels disambiguation ... more details
Unreferenced date June 2010 A reverse bounty is a bounty that a service provider proposes for doing a particular job. It is distinct from a regular bounty, which is proposed by a person wishing to pay for a service. Reverse bounties are most common in open source software development . See also Open source bounty Category Services management and marketing ... more details
Unreferenced stub auto yes date December 2009 Orphan date December 2009 Reverse diffusion refers to a situation where the transport of particles atom s or molecule s in a medium occurs towards regions of lower concentration gradients, opposite to that observed during diffusion . This phenomenon occurs during phase matter phase separation and is described by the Cahn Hilliard equation . Reverse diffusion also refers to when water is forced from an region of lower concentration to high. DEFAULTSORT Reverse Diffusion Category Diffusion Physics stub cs Reverzn osm za ... more details
File Reverse proxy h2g2bob.svg thumb right 280px alt A proxy server connecting the Internet to an internal network. A reverse proxy taking requests from the Internet and forwarding them to servers in an internal ... network. In computer network s, a reverse proxy is a type of proxy server that retrieves resources on behalf ... to the client as though it originated from the reverse proxy itself. ref name apache forward reverse cite web url http httpd.apache.org docs 2.0 mod mod proxy.html forwardreverse title Forward and reverse proxies publisher The Apache Software Foundation accessdate 9 February 2011 ref ... such as a web browser and the server s hosting the desired resources, a reverse proxy is usually situated closer to the server s and will only return a configured set of resources. Uses of reverse proxies Reverse proxies can hide the existence and characteristics of the origin server s via security ... a reverse proxy, removing malware or initiating takedowns, for example, can become difficult ... by the web server itself, but is instead offloaded to a reverse proxy that may be equipped with SSL acceleration hardware. A reverse proxy can Load balancer distribute the load from incoming requests to several servers, with each server serving its own application area. In the case of reverse proxying in the neighborhood of web server s, the reverse proxy may have to rewrite the URL in each incoming request in order to match the relevant internal location of the requested resource. A reverse proxy ... . A reverse proxy can optimize content by Data compression compressing it in order to speed up ... 9 February 2011 ref a dynamically generated page can be produced all at once and served to the reverse ... the client requires to complete the transfer. Servers used commercially aiCache is a commercial reverse proxy and a caching reverse proxy. Apache HTTP Server may be extended with mod proxy to be used as a reverse proxy a caching reverse proxy server may be configured using the mod cache module in conjunction ... more details
A reverse , in the card game contract bridge , is a bidding sequence designed to show additional strength without the need to make a jump bid specifically two suits are bid in the reverse order to that expected .... In Standard American a reverse is defined by William S. Root ref The ABCs of Bridge William S. Root ... 2 5 ref An example satisfying both definitions is 1 Clubs 1 Spades 2 Hearts The last bid is a reverse ... 2 Hearts , apparently seeking a fit that is unlikely to exist. This seemingly odd bidding is the reverse ... hands as it consumes bidding space. A relatively easy way to identify the reverse uses the gap principle. A simple reverse is made when 1. Opener opens one of any suit except spades . 2. Responder ... suits. When opener bids a red suit that was in the gap then that constitutes a reverse. Opener s reverse This shows a minimum of 16 19 Hand evaluation points , depending on system, and at least 5 cards in the first bid suit. Opener s reverse may face a weak responding hand, with which responder ... s first suit at the two level. Opener s reverse still allows responder to rebid his suit at the two level, but a preference to opener s first suit must be at the three level. Thus, opener s reverse ... or 2 Clubs , and to pass if opener rebid 2 Spades or 2 Diams . However, following the reverse, he must now rebid 3 Diams . Thus the reverse has forced the partnership to commit to taking nine tricks instead of eight based on the extra strength of opener. Examples of reverse bidding sequences 1 Clubs by opener 1 Spades by responder 2 Diams by opener this bid is the reverse 1 Diams 1 Spades 2 ... a hand to reverse the bidding at that juncture. The modern trend is therefore to allow such a reverse ... . Commonsense Bidding , p.48. Three Rivers Press, New York. ISBN 0 517 88430 5 ref Opener s reverse ... suit is available to bid. High and low level reverseReverse bids are generally considered to be forcing, with subtle variations depending on system A standard reverse called a low level reverse in the UK ... more details
Reverse marketing is the concept of making the customer seek the firm rather than marketers seeking the customer. ref http www.crm2day.com library docs ap0001.pdf Reverse Marketing Synergy of Purchasing and Relationship Marketing by Wim G. Biemans and Maryse J. Brand, University of Groningen, The Netherlands, CRM Today ref Usually, this is done through traditional means of advertising, such as television advertisement s, print magazine advertisements and online Electronic media media . Reverse marketing works mainly on the basis of the Law of Attraction . While marketing mainly deals with finding the right set of customer s and Targeted advertising targeting them, Reverse marketing deals with strategies that would make the customer find the company offering the product. Leenders and Blenkhorn define Reverse Marketing as an aggressive and imaginative approach to achieving supply objectives. The purchaser makes the initiative in making the proposal. ref cite journal authorlink Michiel R. Leenders coauthors David L. Blenkhorn title Reverse Marketing The New Buyer Supplier Relationship journal Journal of Marketing volume Vol. 53, No. 2 pages 129 131 date April 1989 ref References reflist Category Marketing marketing stub ... more details
Unreferenced date July 2007 A reverse connection is usually used to bypass Firewall computing firewall restrictions on open port s. A firewall usually blocks open ports, but does not block outgoing Internet traffic traffic . In a normal forward connection, a Client computing client connects to a Server computing server through the server s open port , but in the case of a reverse connection, the client opens the port that the server connects to. The most common way a reverse connection is used is to bypass Firewall computing firewall and Router security restrictions. For example, a Trojan horse running on a computer behind a firewall that blocks incoming connections can easily open an outbound connection to a remote host on the Internet. Once the connection is established, the remote host can send commands to the Trojan horse. Trojan horses Remote Administration Tool s that use a reverse connection usually send SYN TCP packets to the attacker s IP address . The attacker listens for these SYN packets and accepts the desired connections. If a computer is sending SYN packets or is connected to an attacker s PC, the connections can be discovered by using the netstat command or a common port listener like Active Ports . If the Internet connection is closed down and an application still tries to connect to remote hosts it may be infected with malware. Keylogger s and other malicious programs are harder to detect once installed, because they connect only once per session. Note that SYN packets by themselves are not necessarily a cause for alarm, as they are a standard part of all TCP connections. There are legitimate uses for using reverse connections, for example to allow hosts ..., and so must either have ports forwarded at the firewall, or open reverse connections to a central administration server. External links http en.gentoo wiki.com wiki Reverse Tunneling SSH Reverse Tunnel HOWTO Category Network architecture Compu network stub de Reverse Connection ... more details
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