Home / malware

PDF

Trojan:Win32/Urelas.W

First posted on 04 December 2013.
Source: Microsoft

Aliases :

There are no other names known for Trojan:Win32/Urelas.W.

Explanation :

Threat behavior Trojan:Win32/Urelas.W 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

Trojan:Win32/Urelas.W creates the following files on your computer:

• \yrefu.exe
• c:\documents and settings\administrator\local settings\temp\_sannuy.bat
• c:\documents and settings\administrator\local settings\temp\golfinfo.ini

Note: refers to a variable location that is determined by the malware by querying the Operating System. The default installation location for the System folder for Windows 2000 and NT is C:\Winnt\System32; and for XP, Vista, and 7 is C:\Windows\System32.

Payload

Contacts remote host
Trojan:Win32/Urelas.W may contact a remote host at 218.54.31.226 using port 11120. 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 ee38ed29a495d609acb55eaef3e0217bece203c6.Symptoms

System changes

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

• The presence of the following files:
  
  \yrefu.exe
  c:\documents and settings\administrator\local settings\temp\_sannuy.bat
  c:\documents and settings\administrator\local settings\temp\golfinfo.ini

Last update 04 December 2013

 

TOP