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TrojanDownloader:Win32/Karagany.A


TrojanDownloader:Win32/Karagany.A 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/Karagany.A 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/Karagany.A creates the following files on an affected computer:

  • <current folder>\<malware file>.exe
  • c:\documents and settings\administrator\application data\adobe\adobeupdate .exe
  • c:\documents and settings\administrator\application data\adobe\plugs\kb196125.exe
Payload
Contacts remote hosts
TrojanDownloader:Win32/Karagany.A may contact the following remote hosts using port 80:

  • adobe.com
  • niceredirect.co.cc

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 033e7846346167693b5c7c7c70a9a32b5bb65477.

Symptoms

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

  • The presence of the following files:
  • <malware file>.exe
    c:\documents and settings\administrator\application data\adobe\adobeupdate .exe
    c:\documents and settings\administrator\application data\adobe\plugs\kb196125.exe


Prevention


Alert level: Severe
First detected by definition: 1.91.1102.0
Latest detected by definition: 1.173.2181.0 and higher
First detected on: Oct 04, 2010
This entry was first published on: Nov 24, 2010
This entry was updated on: Apr 17, 2011

This threat is also detected as:
  • Trojan-Downloader.Win32.Agent.fcrw (Kaspersky)