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Are Easy Anti Cheat Kicks on Record

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Anti-cheat software

Valve Anti-Cheat
Vac.jpg
Developer(s) Valve
Initial release 2002
Operating system Windows, macOS, Linux
Platform Windows, Linux
Type Anti-cheat software
License Proprietary
Website Official website

Valve Anti-Cheat (VAC) is an anti-cheat software product developed by Valve as a component of the Steam platform, first released with Counter-Strike in 2002.

When the software detects a cheat on a player's system, it will ban them in the future, possibly days or weeks after the original detection.[1] It may kick players from the game if it detects errors in their system's memory or hardware. No information such as date of detection or type of cheat detected is disclosed to the player. After the player is notified, access to online "VAC protected" servers of the game the player cheated in is permanently revoked and additional restrictions are applied to the player's Steam account.

During one week of November 2006, the system detected over 10,000 cheating attempts.[2]

During the month of December 2018 over 600,000 accounts were banned.[3]

History [edit]

In 2001, Even Balance Inc., the developers of the anti-cheat software PunkBuster designed for Counter-Strike and Half-Life mods, stopped supporting the games as they had no support from Valve. Valve had also rejected business offers of integrating the technology directly into their games.[4] [5]

Valve started working on a "long-term solution" for cheating in 2001.[6] VAC's initial release was with Counter-Strike in 2002. During this initial release, the system only banned players for 24 hours.[7] The duration of the ban was increased over time; players were banned for 1 year and 5 years, until VAC2 was released in 2005, when any new bans became permanent.[ citation needed ] VAC2 was announced in February 2005[8] and began beta testing the following month.[9] On November 17, 2006, they announced that "new [VAC] technology" had caught "over 10,000" cheating attempts in the preceding week alone.[2]

During the early testing phase in 2002, some information was revealed about the program via the Half-Life Dedicated Server mailing lists. It can detect versions of "OGC's OpenGl Hack", can detect OpenGL cheats, and also detects CD key changers as cheats. Information on detected cheaters is sent to the ban list server on IP address 205.158.143.67 on port 27013,[10] which was later changed to 27011.[11] There is also a "master ban list" server.[12] RAM/hardware errors detected by VAC may kick the player from the server, but not ban them.[13] [14]

Eric Smith and Nick Shaffner were the original contacts for game administrators.[15] In February 2010, the VAC Team consisted of Steam's lead engineer John Cook and his team of 16 engineers.

In July 2010, several players who successfully used information leaked from Valve to increase their chances of finding a rare Team Fortress 2 weapon called the Golden Wrench were banned by VAC.[16] [17] During the same month, approximately 12,000 owners of Call of Duty: Modern Warfare 2 were banned when Steam updated a DLL file on disk after it had been loaded into memory by the game, causing a false positive detection. These bans were revoked and those affected received a free copy of Left 4 Dead 2 or an extra copy to send as a gift.[18] [19] [20]

In February 2014, rumors spread that the system was monitoring websites users had visited by accessing their DNS cache. Gabe Newell responded via Reddit, clarifying that the purpose of the check was to act as a secondary counter-measure to detect kernel level cheats, and that it affected fewer than 0.1% of clients checked which resulted in 570 bans.[21] [22] [23]

As of May 2016, the system began banning accounts that were registered with the same phone number.[24] Additionally, a phone number that was used on an account at the time it was banned will not be allowed to be re-registered on other accounts for three months.

The system has been criticized for failing to detect LMAOBOX, a popular cheat program for Team Fortress 2, until May 2016, which resulted in a wave of bans.[25]

In February 2017, Valve announced plans to introduce a machine-learning approach to detecting cheats in Counter-Strike: Global Offensive, and that an initial version of the system was already in place, which would automatically mark players for manual detection by players through the "Overwatch" system.[26]

In March 2018, Valve publicized said machine-learning based approach in a talk at the Games Developer Conference, naming it VACNet.[27]

Design [edit]

Valve rarely discusses the software, as it may help cheaters write new code or conduct social engineering.[21]

The software sends client challenges to the machine; if the appropriate response is not received, it is flagged as a possible violation. It uses Signature Scanning to detect possible cheats when scanning the computer's memory and processes. Whenever an anomaly is detected, an incident report is created and compared to a database of banned applications and/or analyzed by Valve engineers. The engineers may inspect the code and run it on their own copies of the game. If the code is confirmed as a new cheat, it is added to the database of cheat codes.[28] [29]

According to Steam's lead engineer John Cook, to stop the anti-cheat software itself from being exploited, "The software is constantly updated and sent down in small portions for the servers as needed, so hackers only get to see small portions of it running at any particular time. So while they may be able to work around pieces of it, they can never hack everything."[29]

Valve also accepts submissions of cheat programs and cheat websites from players by email. Players may also report players they suspect of cheating through their Steam Community profile, although players are not banned from these reports alone.[30]

If a cheat is found, the player's Steam account will be flagged as cheating immediately, but the player will not receive any indication of the detection. It is only after a delay of "days or even weeks"[1] that the account is permanently banned from "VAC Secure" servers[30] for that game, possibly along with other games that use the same engine (e.g. Valve's Source games, GoldSrc games, Unreal engine games). Valve never discloses which cheat was detected. Players have criticized the system for taking weeks to months to ban cheaters.[31]

Large numbers of flagged accounts may also be banned in "waves" or "VAC waves".[32] [33]

Additional restrictions [edit]

Players that are banned face additional restrictions. Steam Family Sharing allows users to share their video game library with another Steam user to download and play, but games that the player is VAC banned from cannot be shared. If a user shares their games with another user, then cheats or fraud are detected on the recipients account, the original owner of the games being shared may be VAC banned and the sharing function revoked.[34] [35] Banned users also cannot contribute to the Steam Translation Server project, that allows users to contribute new translations of Steam and its games.[36] Users banned from a game are not allowed to refund it.[37]

Over 100 games support VAC; players that are banned from the following games face additional restrictions:[38]

Mods based on the games above may inherit VAC support from the host game.

dagger Denotes GoldSrc games, if a player is banned in one of these games they are banned from all of them.[30]
double-dagger Denotes Source engine games, if a player is banned in one of these games they are banned from all of them.[30]
# Denotes games that have a stricter policy of having all servers VAC protected, and additionally bans players for editing of any game files except config files.[30]
§ Denotes games that face digital goods restrictions and or revocation.[39]

[edit]

The user's Steam profile is also marked with "ban(s) on record", which is publicly visible and cannot be hidden, regardless of the profile visibility of the banned account. VAC bans become hidden to other users after seven years of not getting another VAC ban.[ citation needed ] An analysis of 43,465 users that had been banned between April 2011 and October 2011 showed that the more VAC banned players a user is friends with, the more likely they will also be VAC banned themselves in the future. After they were banned, they lost more friends, were more likely to increase their privacy settings and also had more VAC banned friends than non-banned players.[40] Banned players are also sometimes referred to as going on "VACation".[33] [41]

Banned players are also excluded from competing in most electronic sports tournaments. In 2014, professional player Joel "Emilio" Mako was banned during a live stream;[42] [43] [44] he initially denied using a cheat, claiming it was caused by "a friend of his played on one of his smurfing accounts which mail is linked to his main account"[45] Then in 2015, he admitted to using a cheat.[46] [47] [48] Hovik "KQLY" Tovmassian, Simon "smn" Beck and Gordon "SF" Giry were banned shortly before they were scheduled to play at DreamHack Winter 2014.[41] [49] The ESEA League claimed the bans were a result of working with Valve directly.[50] Simon "smn" Beck and Hovik "KQLY" Tovmassian both admitted to using cheats.[51]

In March 2020, Elias "Jamppi" Olkkonen filed a lawsuit against Valve, alleging that a lifetime VAC ban negatively affected his esports career, specifically his inability to play in Valve-sanctioned Major tournaments, which subsequently prevented him from signing onto the esports team OG.[52] [53] [54] [55] [56] The VAC-ban is tied to an account which he previously owned when he was 14, and then sold to a friend who incurred the ban;[52] [53] [54] [55] [56] the lawsuit alleges that a lifelong VAC ban for a minor, particularly without the ability to first plead his case, is unreasonable.[ citation needed ]

A few users used to collect VAC bans, but this was eventually made less prolific as Valve updated the VAC ban message shown on the user's profile, now showing "Multiple VAC bans on record" instead of the actual number of VAC bans.

See also [edit]

  • Cheating in online games
  • Warden (software)

References [edit]

  1. ^ a b "Steam Support FAQ: I've Been Banned". steampowered.com. Valve.
  2. ^ a b "Steam Message - Friday, November 17 2006". steampowered.com. Valve. November 17, 2006. Archived from the original on January 6, 2007. Retrieved December 11, 2002.
  3. ^ Boudreau, Ian. "Valve banned a record number of players in December". PCGamesN . Retrieved September 25, 2021.
  4. ^ KoshVorlon (September 25, 2001). "Punkbuster to stop HL/CS development". DSLReports. DSLReports.
  5. ^ Gibson, Steve (September 25, 2001). "Punkbuster Retires From HL". Shacknews. Gamerhub.
  6. ^ "Eric Smith, Valve, HLDS mailing list, October 2001". Blue's News.
  7. ^ "Online cheaters face games ban". BBC News. BBC. August 29, 2002.
  8. ^ "Steam - New Counter-Strike: Source Map Coming Soon". steampowered.com. Valve. February 11, 2005. Archived from the original on February 12, 2005.
  9. ^ "Steam - Update - Friday March 25, 2005". steampowered.com. Valve. March 25, 2005. Archived from the original on March 26, 2005.
  10. ^ "Eric Smith, Valve HLDS Mailing List, July 2002". Archived from the original on June 3, 2015. {{cite web}}: CS1 maint: unfit URL (link)
  11. ^ Eric Smith, Valve, HLDS mailing list, August 2002.
  12. ^ Fields, Aaron (2002). "Valve Anti Cheat Updated". SK Gaming. SK Gaming.
  13. ^ Fields, Aaron (2003). "VAC Update". SK Gaming. SK Gaming.
  14. ^ rizzuh (June 19, 2003). "New VAC Module (2)". CS-Nation. Archived from the original on June 19, 2003.
  15. ^ efficient (November 16, 2003). "VAC Updated". CS-Nation. Archived from the original on December 11, 2003.
  16. ^ Bobev, Radimir (July 8, 2010). "TF2 Engineer Update Gets Serious – VAC Bans Issued". Device Magazine.
  17. ^ WiNGSPANTT (July 8, 2010). "Goldengate: The Engineer Update Scandal". Top Tier Tactics.
  18. ^ Smith, Quintin (July 26, 2010). "Valve Anti-Cheat software goes a bit GlaDOS?". Rock, Paper, Shotgun. Gamer Network.
  19. ^ Meer, Alec (July 27, 2010). "Valve offers free game after 12,000 false Steam bans". Gamesindustry.biz. GamesIndustry International.
  20. ^ McElroy, Griffin (July 27, 2010). "Valve apologizes for banning over 12,000 legit Modern Warfare 2 players". Engadget. Verizon Media.
  21. ^ a b Newell, Gabe. "Valve, VAC, and trust". Reddit.
  22. ^ Warr, Philippa (February 18, 2014). "Valve couldn't care less what porn you watch (Wired UK)". Wired.co.uk. Condé Nast Publications. Archived from the original on May 8, 2014.
  23. ^ Scullion, Chris (February 18, 2014). "Valve rejects claims it receives players' browsing history". Computerandvideogames.com. Future Publishing. Archived from the original on March 5, 2014. {{cite web}}: CS1 maint: unfit URL (link)
  24. ^ Grayson, Nathan (April 30, 2016). "Valve Steps Up Counter-Strike's Anti-Cheat Measures". Kotaku. G/O Media.
  25. ^ Grayson, Nathan (May 3, 2016). "Valve Finally Cracks Down On One Of The Biggest Team Fortress 2 Cheats". Kotaku. G/O Media.
  26. ^ Prescott, Shaun (February 16, 2017). "Valve wants to take a 'machine learning' approach to Counter-Strike anti-cheat". PCGamer. Future plc.
  27. ^ McDonald, John (March 31, 2018). "Robocalypse Now". youtube . Retrieved July 23, 2020. [ dead YouTube link ]
  28. ^ Xiao, Bin; Yang, Laurence T.; Ma, Jianhua; Muller-Schloer, Christian; Hua, Yu (July 2, 2007). Autonomic and Trusted Computing: 4th International Conference, ATC 2007, Hong Kong, China, July 11-13, 2007, Proceedings. Springer Science & Business Media. p. 125. ISBN978-3-540-73547-2.
  29. ^ a b Kushner, David (February 17, 2010). "Steamed: Valve Software Battles Video-game Cheaters". IEEE Spectrum. Institute of Electrical and Electronics Engineers.
  30. ^ a b c d e "Steam Support FAQ: Valve Anti-Cheat System (VAC)". steampowered.com. Valve.
  31. ^ Peel, Jeremy (February 12, 2014). "Rust's new anti-cheat system is working - but Facepunch are "never going to be finished fighting"". PCGamesN. Network N.
  32. ^ Ms. Smith (February 16, 2014). "Some gamers steamed over alleged Valve anti-cheat DNS spying". CSO Online. International Data Group.
  33. ^ a b Grayson, Nathan (December 24, 2014). "A Lot Of Cheaters Just Got Banned From Counter-Strike". kotaku.com.au. G/O Media.
  34. ^ "Steam Family Sharing". steampowered.com. Valve.
  35. ^ Maiberg, Emanuel (February 28, 2014). "Steam Family Sharing now available for all users". PC Gamer. Future plc.
  36. ^ "Steam Translation Server: FAQ". steampowered.com. Valve.
  37. ^ "Steam Refunds: FAQ". steampowered.com. Valve.
  38. ^ "VAC-enabled Steam games". steampowered.com. Valve.
  39. ^ "Steam Support FAQ: Items Not Properly Awarded". steampowered.com. Valve.
  40. ^ Blackburn, Jeremy; Simha, Ramanuja; Kourtellis, Nicolas; Zuo, Xiang; Ripeanu, Matei; Skvoretz, John; Iamnitchi, Adriana (2012). WWW 12 Proceedings of the 21st Annual Conference - Branded with a scarlet "C": cheaters in a gaming social network. International World Wide Web Conference. pp. 81, 89. doi:10.1145/2187836.2187848. ISBN9781450312295. S2CID 2609577.
  41. ^ a b Higgins, Chris (November 25, 2014). "How to spot a hacker in Counter-Strike". RedBull.com. Red Bull GmbH.
  42. ^ Lundgren, Tobias (November 21, 2014). "DreamHack: "We will take special precautions at DHW"". Aftonbladet. Schibsted.
  43. ^ Higgins, Chris (January 27, 2015). "The 5 most awkward CS:GO Pro bans". RedBull.com. Red Bull GmbH.
  44. ^ Luis "MIRAA" Mira (October 9, 2014). "emilio VAC banned mid-match". HLTV. HLTV.
  45. ^ "Team Property statement regarding emilio". E-sport. October 11, 2014.
  46. ^ Engstrand, Simon (February 24, 2015). "Emilio admits cheating, wants to compete again". Aftonbladet. Schibsted.
  47. ^ Milan "Striker" Švejda (February 25, 2015). "emilio Admits to Cheating". HLTV. HLTV.
  48. ^ Smith, Chris (February 26, 2015). "Swedish professional CS:GO player Joel "emilio" Mako admits cheating". TweakTown. Tweak Town Pty Ltd.
  49. ^ Copeland, Wesley (May 1, 2017). "CS:GO eSports Community Shaken Following Revelation of Cheating". IGN. Ziff Davis.
  50. ^ Luis "MIRAA" Mira (November 21, 2014). "ESEA: "More to come soon"". HLTV. HLTV.
  51. ^ Lahti, Evan (November 22, 2014). "CS:GO competitive scene in hacking scandal, 3 players banned". PC Gamer. Future plc.
  52. ^ a b Biazzi, Leonardo (March 2020). "Jamppi reportedly sues Valve over VAC ban that prevented him from signing with OG". Dot Esports. GAMURS Group.
  53. ^ a b Amos, Andrew (March 27, 2020). "CSGO pro Jamppi sues Valve over permanent VAC ban". Dexerto. Dexerto Limited.
  54. ^ a b Jarek "DeKay" Lewis (March 26, 2020). "Finnish CS:GO Player Jamppi Sues Valve Over Alleged VAC Ban". DBLTAP. Minute Media.
  55. ^ a b Nick J. (March 27, 2020). "Banned CSGO player Jamppi files lawsuit against Valve". WIN.gg. World Intersports Network Inc.
  56. ^ a b OES Admin (March 26, 2020). "Jamppi suing Valve for supposed unfair VAC ban". Online Esports. Sogosa Pte Ltd.

External links [edit]

  • Official VAC discussion forum
  • List of Valve Anti-Cheat (VAC) enabled games

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Source: https://en.wikipedia.org/wiki/Valve_Anti-Cheat

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