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TrojanDownloader:Win32/Tofsee.D


TrojanDownloader:Win32/Tofsee.D is a trojan that silently downloads and installs other programs without consent. This could include the installation of additional malware or malware components to an affected computer.


What to do now

To detect and remove this threat and other malicious software that may have been installed in your computer, run a full-system scan with an up-to-date antivirus product such as the following: For more information about using antivirus software, see http://www.microsoft.com/windows/antivirus-partners/.

Threat behavior

TrojanDownloader:Win32/Tofsee.D is a trojan that silently downloads and installs other programs without consent. This could include the installation of additional malware or malware components to an affected computer.
Installation
TrojanDownloader:Win32/Tofsee.D creates the following files on an affected computer:

  • \device\null
  • c:\documents and settings\administrator\local settings\temp\2120.bat
Payload
Contacts remote host
TrojanDownloader:Win32/Tofsee.D may contact a remote host at 94.242.250.178 using port 80. Commonly, malware may contact a remote host for the following purposes:
  • To report a new infection to its author
  • To receive configuration or other data
  • To download and execute arbitrary files (including updates or additional malware)
  • To receive instruction from a remote attacker
  • To upload data taken from the affected computer

This malware description was produced and published using our automated analysis system's examination of file SHA1 ced6001b44673189aa65e7d3e57803410a86e29e.

Symptoms

System changes
The following system changes may indicate the presence of this malware:

  • The presence of the following files:

  • \device\null
    c:\documents and settings\administrator\local settings\temp\2120.bat


Prevention


Alert level: Severe
First detected by definition: 1.149.28.0
Latest detected by definition: 1.173.2181.0 and higher
First detected on: Apr 18, 2013
This entry was first published on: Apr 21, 2013
This entry was updated on: May 02, 2013

This threat is also detected as:
  • Trojan-Dropper.Win32.Dorifel.adce (Kaspersky)