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TrojanDownloader:Win32/Small.gen!AZ


TrojanDownloader:Win32/Small.gen!AZ is a generic detection for certain malicious files that attempt to download and execute other malware in the system without the user's knowledge.
 
In the wild, TrojanDownloader:Win32/Small.gen!AZ is known to be downloaded in a system by script files that may be detected as Exploit:JS/CVE-2008-0015, and which exploit a vulnerability in Microsoft Video ActiveX Control. This vulnerability is discussed in detail in Microsoft Security Advisory (972890).


What to do now

Use Microsoft Windows Defender, the Microsoft Safety Scanner, or another up-to-date scanning and removal tool to detect and remove this threat and other unwanted software from your computer. For more information on Microsoft security products, see http://www.microsoft.com/protect/products/computer/default.mspx.
 
This threat is known to be downloaded by a script file that exploits a vulnerability in Microsoft Video ActiveX Control. See Microsoft Security Advisory (972890) for more information on mitigation and workarounds.

Threat behavior

TrojanDownloader:Win32/Small.gen!AZ is a generic detection for certain malicious files that attempt to download and execute other malware in the system without the user's knowledge.
 
In the wild, TrojanDownloader:Win32/Small.gen!AZ is known to be downloaded in a system by script files that may be detected as Exploit:JS/CVE-2008-0015, and which exploit a vulnerability in Microsoft Video ActiveX Control. This vulnerability is discussed in detail in Microsoft Security Advisory (972890).
 
Analysis by Francis Allan Tan Seng

Symptoms

There are no common symptoms associated with this threat. Alert notifications from installed antivirus software may be the only symptom(s).

Prevention


Alert level: Severe
First detected by definition: 1.55.1009.0
Latest detected by definition: 1.55.1009.0 and higher
First detected on: Apr 03, 2009
This entry was first published on: Jul 07, 2009
This entry was updated on: Apr 17, 2011

This threat is also detected as:
  • Gen:Trojan.Heur.PT.1020DFCFCF (BitDefender)