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You have been re-routed to the Worm:Win32/Secrar.A write up because Worm%253aWin32%252fSecrar.A has been renamed to Worm:Win32/Secrar.A
 

Worm:Win32/Secrar.A


Worm:Win32/Secrar.A is a worm - a self-propagating program that can spread itself from one computer to another. Worms may spread themselves via a variety of different channels in order to compromise new computers. Commonly, worms may spread directly by copying themselves to removable or network drives, or by attempting to exploit particular vulnerabilities on targeted computers. Worms also often attempt to spread via platforms that require user interaction in order to run. They may send themselves as an attachment to an email or an instant message, or send a link to a copy of themselves in the body of a message. In these cases the message needs to be convincing enough to encourage the victim to click on the link or attachment and run or download a copy of the worm.


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

Worm:Win32/Secrar.A is a worm - a self-propagating program that can spread itself from one computer to another. Worms may spread themselves via a variety of different channels in order to compromise new computers. Commonly, worms may spread directly by copying themselves to removable or network drives, or by attempting to exploit particular vulnerabilities on targeted computers. Worms also often attempt to spread via platforms that require user interaction in order to run. They may send themselves as an attachment to an email or an instant message, or send a link to a copy of themselves in the body of a message. In these cases the message needs to be convincing enough to encourage the victim to click on the link or attachment and run or download a copy of the worm.
Installation
When executed, Worm:Win32/Secrar.A copies itself to %windir%\svchst.exe.

The malware creates the following files on an affected computer:

  • %windir%\mssys.dll
  • c:\documents and settings\localservice\local settings\application data\slt.exf
Payload
Contacts remote hosts
Worm:Win32/Secrar.A may contact the following remote hosts using port 80:

  • 217.23.4.69
  • http://217.23.4.69/g/

Commonly, malware may contact a remote host for the following purposes:
  • To confirm Internet connectivity
  • 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 e197baf69ebfaf41ce8672bd4f39cf60928c28bc.

Symptoms

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

  • The presence of the following files:

  • %windir%\mssys.dll
    %windir%\svchst.exe
    c:\documents and settings\localservice\local settings\application data\slt.exf


Prevention


Alert level: Severe
First detected by definition: 1.127.201.0
Latest detected by definition: 1.185.2035.0 and higher
First detected on: May 18, 2012
This entry was first published on: May 22, 2012
This entry was updated on: Jun 01, 2012

This threat is also detected as:
  • Mal_DRPR-3 (Trend Micro)
  • Worm.Win32.Zwr.h (Kaspersky)
  • Troj/Delf-FJQ (Sophos)