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ContraVirus

Posted: February 8, 2007

Threat Metric

Threat Level: 10/10
Infected PCs: 131
First Seen: July 24, 2009
Last Seen: August 25, 2022
OS(es) Affected: Windows

ScreenshotContraVirus is a fake anti-spyware program that is often downloaded and installed without user knowledge or consent by a Trojan or through browser security holes. ContraVirus launches on Windows startup and may generate large numbers of popup adverts. ContraVirus will also display notifications of imaginary security risks in its attempts to get the user to purchase the full version. ContraVirus program can be extremely difficult to remove manually, and will continue to try to recreate itself. ContraVirus is thought to be related to VirusBlaster.

ScreenshotScreenshotScreenshot

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:



ToolBarNotifier.exe File name: ToolBarNotifier.exe
Size: 65.53 KB (65536 bytes)
MD5: b2e1106b640e7cf1d5f18106571caf3c
Detection count: 96
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: December 11, 2009
ToolBand.dll File name: ToolBand.dll
Size: 110.59 KB (110592 bytes)
MD5: cd758df8509492d4ed19db49f80d2c04
Detection count: 95
File type: Dynamic link library
Mime Type: unknown/dll
Group: Malware file
Last Updated: December 11, 2009
ContraVirus.exe File name: ContraVirus.exe
Size: 1.6 MB (1605632 bytes)
MD5: e199041a33eede499707438a67279651
Detection count: 83
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: December 11, 2009
cv_1_setup[1].exe File name: cv_1_setup[1].exe
Size: 164.76 KB (164760 bytes)
MD5: 5e508b49d10450c856f6d4a0767e07fd
Detection count: 66
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: December 11, 2009
ContraVirus.exe File name: ContraVirus.exe
Size: 1.6 MB (1605632 bytes)
MD5: 437e425c0942b28e02a24d95526c8571
Detection count: 51
File type: Executable File
Mime Type: unknown/exe
Group: Malware file
Last Updated: December 11, 2009

Registry Modifications

The following newly produced Registry Values are:

File name without pathToolBand.dll

Additional Information

The following directories were created:
%ProgramFiles%\ContraVirus
The following cookies were detected:
contra-viruscontraviruscontraviruspro
The following URL's were detected:
contra-virus.comcontravirus.comcontraviruspro.com

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