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Trojan:Win32/Folyris.A


Trojan:Win32/Folyris.A is a malicious program that is unable to spread of its own accord. It may perform a number of actions of an attacker's choice on 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:

Threat behavior

Trojan:Win32/Folyris.A is a malicious program that is unable to spread of its own accord. It may perform a number of actions of an attacker's choice on an affected computer.
Installation
When it runs, Trojan:Win32/Folyris.A copies itself to c:\documents and settings\administrator\ctfmon.exe.
 
The malware creates the file c:\documents and settings\administrator\local settings\temp\i-<random number>.bat on your PC, for example c:\documents and settings\administrator\local settings\temp\i-707271198.bat.
Payload
Contacts remote host
 
Trojan:Win32/Folyris.A may contact a remote host at aba.net.ua using port 80. Commonly, malware does this to:
  • Report a new infection to its author
  • Receive configuration or other data
  • Download and run files, including updates or other malware
  • Receive instruction from a remote hacker
  • Upload data taken from your PC

This malware description was produced and published using our automated analysis system's examination of file SHA1 927cc6682bf975f83af03f7d203ef70ced4caeda.

Symptoms

System changes
The following could indicate that you have this threat on your PC:

  • The presence of the following files:

c:\documents and settings\administrator\ctfmon.exe
c:\documents and settings\administrator\local settings\temp\i-707271198.bat
 

Prevention


Alert level: Severe
First detected by definition: 1.161.132.0
Latest detected by definition: 1.179.686.0 and higher
First detected on: Oct 18, 2013
This entry was first published on: Oct 24, 2013
This entry was updated on: Oct 29, 2013

This threat is also detected as:
  • Trojan.Win32.Fsysna.ou (Kaspersky)