Home / malware

PDF

Trojan:Win32/Nitol.E

First posted on 24 December 2013.
Source: Microsoft

Aliases :

There are no other names known for Trojan:Win32/Nitol.E.

Explanation :

Threat behavior Trojan:Win32/Nitol.E 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/Nitol.E copies itself to %windir%\tasks\csrss.exe. The malware modifies the following registry entry so that it runs each time you start your PC:

Adds value: "Userinit"
With data: "c:\windows\system32\userinit.exe,c:\windows\tasks\csrss.exe"
To subkey: HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

Payload

Contacts remote host
Trojan:Win32/Nitol.E may contact a remote host at 192.210.51.175 using port 5060. 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 472a8023fb1394dc2bfe5a92f31a2610a8fb64de.Symptoms

System changes

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

• The presence of the following files:
  
  %windir%\tasks\csrss.exe

• You see these entries or keys in your registry:

Adds value: "Userinit"
With data: "c:\windows\system32\userinit.exe,c:\windows\tasks\csrss.exe"
To subkey: HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

Last update 24 December 2013

 

TOP