27f1b 40.00%
0e4c4 7.50%
1428e 17.50%
e2410 5.00%
1f438 2.50%
13721 2.50%
9a386 2.50%
0066c 2.50%
7c018 2.50%
8b3fc 2.50%
19fb4 2.50%
bb67d 2.50%
cab78 2.50%
ada0d 2.50%
43cb6 2.50%
49b76 2.50%
(Note, Even Balance publishes each variation of this file with the same version, but the hashes are unique.)



By Even Balance (Signed)

Remove pnkbstrb.exe
Warning 12 antivirus scanners has detected malware in various versions of pnkbstrb.exe.


pnkbstrb.exe has 16 known versions, the most recent one is . It is started as a Windows Service with the name 'PnkBstrB' and described as “PunkBuster Service Component [v2.304 BFP4F]”. . In addition, it is run under the context of the SYSTEM account with extensive privileges (the administrator accounts have the same privileges). The average file size is about 220.97 KB. It is an authenticode code-signed executable issued to Even Balance by the certification authority VeriSign. Some variations of the file have been seen to be installed with the program Call of Duty(R) 4 - Modern Warfare(TM) from Activision. During the process's lifecycle, the typical CPU resource utilization is about 0.0083% including both foreground and background operations, the average private memory consumption is about 4.68 MB with the maximum memory reaching around 4.69 MB. Addionally, typically read and write I/O disk operations is about 377 Bytes per minute for reads and 63 Bytes per minute for writes.


File name:pnkbstrb.exe
Typical file path:C:\windows\syswow64\pnkbstrb.exe
Issued to:Even Balance
Authority (CA):VeriSign
Windows Service
Service name:PnkBstrB
Description:“PunkBuster Service Component [v2.304 BFP4F]”

ResourcesPrograms installed in

(Note, the programs listed below are for all versions of pnkbstrb.exe.)
5% remove
Call of Duty 4: Modern Warfare is a first-person shooter video game, developed by Infinity Ward and published by Activision. As opposed to earlier games in the Call of Duty series, the game features m...


(Note, the behaviors below are for all versions of pnkbstrb.exe, select a unique version for details.)
Runs under 'SYSTEM\CurrentControlSet\Services' by the Service Controller (services.exe)
  • 'PnkBstrB'
Windows firewall allowed programs
Exceptions allow programs to access to the Internet through an outbound connections
  • Firewall exception for 'C:\WINDOWS\system32\PnkBstrB.exe'
  • Firewall exception for 'C:\WINDOWS\system32\PnkBstrB.exe'

MalwareMalware detections

Based on 40+ industry antivirus scanners, 12 of them detected the following malware.
Antivirus engineEngine versionDetectionFile version
Symantec 20121.3.0.76 Suspicious.Cloud.5 0e4c4fcae8646c62362fde5f1281245c
Symantec 20121.3.0.76 Suspicious.Cloud.5 1f438c2cb609cd58980ccf30355b97cd
Symantec 20121.3.0.76 Suspicious.Cloud.5 0066cfc9dec92cef609fd9ff55accaa9
Symantec 20121.3.0.76 Suspicious.Cloud.5 8b3fcd4d5f2d4211e38dcadd3a096004
Symantec 20131.1.5.61 Suspicious.Cloud.5 19fb4efd165577f3f3b893cacce2fc17
Symantec 20131.1.0.101 Suspicious.Cloud.5 cab7847b047f435607859dee19e1a119
Symantec 20131.1.5.61 Suspicious.Cloud.5 ada0de76427206ada7fff462b10b8bc3
Trend Micro HouseCall 9.700.0.1001 TROJ_GEN.F47V0718 0e4c4fcae8646c62362fde5f1281245c
Trend Micro HouseCall 9.700.0.1001 TROJ_GEN.F47V0721 1f438c2cb609cd58980ccf30355b97cd
Trend Micro HouseCall 9.700.0.1001 TROJ_GEN.F47V1114 7c01817adf3207fb65a4b56e6d5ad833
Trend Micro HouseCall 9.700.0.1001 TROJ_GEN.F47V0217 19fb4efd165577f3f3b893cacce2fc17
Trend Micro HouseCall 9.700.0.1001 TROJ_GEN.F47V0609 cab7847b047f435607859dee19e1a119

VersionsAll file variations of pnkbstrb.exe

MD5SHA-1File size
27f1be4a53441c9f1f48b9adc145b0a5 20a8f830d19b54e03fc36dae42d132f7c88167b2 184.81 KB
0e4c4fcae8646c62362fde5f1281245c 845b85ba901adf369839bdec876a6bf89936fbdf 275.49 KB
1428e6cc1458a36cbfc1f2e304c7c42d 93a5faaf2dafa3d03e80c54cf72891f30e89a997 101.3 KB
e24106a5eaecddff00b25497049dd65f ae6e73f03a21c159cf0ed82b1872fb7bafce24a9 105.3 KB
1f438c2cb609cd58980ccf30355b97cd a2b9e1ada73c894359fd2b07318228663a5d3d49 274.32 KB
137216004e8dc1820ab8feec5919366c c56843ac10e853c53b1b15f1e0d0816ec439308f 263.91 KB
9a386ec60a166df66205343ca12c6b86 4c08b6cb0eb8acaeefd850f116d68d531f44e906 210.09 KB
0066cfc9dec92cef609fd9ff55accaa9 0ca3574fa2527d3b2aba557efb5456e4fc87d5bf 213.38 KB
7c01817adf3207fb65a4b56e6d5ad833 f75468e477772cc7724253976905551af93f9fd0 209.49 KB
8b3fcd4d5f2d4211e38dcadd3a096004 75e8c13c7b6dfea42d17902b91e8a4edaa3d8afe 276.07 KB
19fb4efd165577f3f3b893cacce2fc17 c7b29cc879566794b3e0b33530c0ffa550f81f87 284.27 KB
bb67daf467df597a7df6f5ae67174ea4 a3d17c937964a99921acf1f135b645f663d08665 184.95 KB
cab7847b047f435607859dee19e1a119 5212b18defa121ff44fcff758db56c92b9672caa 284.3 KB
ada0de76427206ada7fff462b10b8bc3 943da4e4332705b327811e4cea5ab7cce3fdc482 275.16 KB
43cb60ce6e345f0f097d07b85db70f81 eaa2694096404f16a37298e8f5a463b0c354ed66 283.38 KB
49b76b80c1373b18491034949f2a53ec ca7428fb7cbef0437ff37b3fb83c5b7b3456be84 109.3 KB

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Microsoft Windows XP 27.50%
Windows 7 Home Premium 20.00%
Windows 7 Ultimate 15.00%
Windows 7 Professional 12.50%
Windows 7 Home Basic 7.50%
Windows Developer Preview 5.00%
Windows Vista Home Premium 5.00%
Windows Vista Home Basic 5.00%
Windows 8 Pro 2.50%

Distribution by countryDistribution by country

United States installs about 30.00% of pnkbstrb.exe.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Toshiba 20.00%
ASUS 20.00%
Acer 15.00%
Lenovo 10.00%
Dell 10.00%
Hewlett-Packard 5.00%
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