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TrojanDownloader:Win32/Rugzip.A


TrojanDownloader:Win32/Rugzip.A is a trojan that downloads other malware from predefined Web sites. Examples of malware downloaded by this trojan can include Trojan:Win32/Alureon.gen!J, TrojanDownloader:Win32/FakeRean, and Trojan:Win32/Meredrop.


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 the Microsoft Safety Scanner (http://go.microsoft.com/fwlink/?LinkId=212742). For more information, see http://www.microsoft.com/protect/computer/viruses/vista.mspx.

Threat behavior

TrojanDownloader:Win32/Rugzip.A is a trojan that downloads other malware from predefined Web sites. Examples of malware downloaded by this trojan can include Trojan:Win32/Alureon.gen!J, TrojanDownloader:Win32/FakeRean, and Trojan:Win32/Meredrop.
 
This trojan downloader may be installed by other malware. Once it has performed its malicious routines, it deletes itself to avoid detection.
 
Analysis by Tim Liu

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: 1.49.1243.0
Latest detected by definition: 1.173.2181.0 and higher
First detected on: Dec 31, 2008
This entry was first published on: May 18, 2009
This entry was updated on: Apr 17, 2011

This threat is also detected as:
  • Packed.Win32.Tdss (Kaspersky)
  • FakeAlert-CT (McAfee)
  • Mal/UnkPack-Fam (Sophos)
  • Win32/Razbho.A (CA)
  • Packed.Win32.Krap (other)
  • Backdoor.Tidserv (Symantec)