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VirTool:Win32/DelfInject.P


VirTool:Win32/DelfInject.P is a generic detection for malicious files that are obfuscated using particular techniques to protect them from detection or analysis.


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

VirTool:Win32/DelfInject.P is a generic detection for malicious files that are obfuscated using particular techniques to protect them from detection or analysis.
 
A malicious file is generally encrypted/and or compressed and stored inside another program, which decodes the malicious file and loads it. The malicious program may be injected into a clean process or loaded in a new process of its own. Unlike a “dropper”, the malicious executable is never written to disk as a separate file.
 
VirTool:Win32/DelfInject.gen has been used on a variety of different malware, especially several different families of Instant Messaging (IM) spreading Internet Relay Chat (IRC) bots such as Worm:Win32/Scrimge, Worm:Win32/Slenfbot and Worm:Win32/Pushbot. Other malware families such as Win32/Rimecud, Win32/Zbot and Win32/Hamweq have also been observed using Delfinject.

Symptoms

There are no obvious symptoms that indicate the presence of this malware on an affected machine.

Prevention


Alert level: Severe
First detected by definition: 1.87.1142.0
Latest detected by definition: 1.145.2105.0 and higher
First detected on: Aug 03, 2010
This entry was first published on: Aug 26, 2010
This entry was updated on: Apr 17, 2011

This threat is also detected as:
No known aliases