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HackTool:Win32/Patch.A


HackTool:Win32/Patch.A is a generic detection for a series of hacking tools intended to "patch" programs that may be evaluation copies, or unregistered versions with limited features.


What to do now

Manual removal is not recommended for this threat. To detect and remove this threat and other malicious software that may have been installed, run a full-system scan with an up-to-date antivirus product such as Microsoft Security Essentials, or the Microsoft Safety Scanner. For more information about using antivirus software, see http://www.microsoft.com/security/antivirus/av.aspx.

Threat behavior

HackTool:Win32/Patch.A is a generic detection for a series of hacking tools intended to "patch" programs that may be evaluation copies, or unregistered versions with limited features.
Installation
When run, this tool may create the file "<system folder>\bassmod.dll", which is non-malicious. Win32/Patch may display several different user interface dialogs, as can be seen in the examples shown below:
 
 
 
 
 
Additional Information
It is recommended that you do not run applications detected as HackTool:Win32/Patch.A, as they may be associated with other malicious, or unwanted applications.
 
Analysis by Wei Li

Symptoms

HackTool:Win32/Patch.A is a user interactive program that does not automatically run at Windows start, or run as a hidden process. 

Prevention


Alert level: Medium
First detected by definition: 1.45.287.0
Latest detected by definition: 1.79.1553.0 and higher
First detected on: Oct 07, 2008
This entry was first published on: Mar 13, 2008
This entry was updated on: Apr 17, 2011

This threat is also detected as:
  • Win-Trojan/Patch.71133 (AhnLab)
  • Suspicious_F.gen (Norman)
  • Troj/Patch-F (Sophos)
  • Trojan.Patch.F (Sunbelt Software)
  • Trojan.Keygen.Q (other)