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TrojanDownloader:Win32/Xuwuq.A

First posted on 19 May 2015.
Source: Microsoft

Aliases :

There are no other names known for TrojanDownloader:Win32/Xuwuq.A.

Explanation :

Threat behavior

Installation
This threat can create files on your PC, including:

• %APPDATA%\god9k5.exe

It modifies the registry so that it runs each time you start your PC. For example:

In subkey: HKCU\software\microsoft\windows\currentversion\run
Sets value: "Windows Internet Security"
With data: "%APPDATA%\god9k5.exe" It can also change your browser proxy by making registry modifications such as the following: In subkey: HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings
Sets value: "AutoConfigURL"
With data: "%APPDATA%\qe76idrp8.txt"


Payload


Downloads malware or unwanted software

This threat can download other malware and unwanted software onto your PC.

We have seen it contact the following server:

• 192.73..108

Additional information

Creates a mutex

This threat can create a mutex on your PC. For example:

• {27445486-EE5F-4C66-A4D3-AD5F08E71516}

It might use this mutex as an infection marker to prevent more than one copy of the threat running on your PC.



This malware description was published using automated analysis of file SHA1 8c50f79e347497c5bad7da21941cbfae5948289b.

Symptoms

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

• You see a file similar to:
  • %APPDATA%\god9k5.exe

• You see registry modifications such as:
  
  
  • In subkey: HKCU\software\microsoft\windows\currentversion\run
    Sets value: "Windows Internet Security"
    With data: "%APPDATA%\god9k5.exe"
    
  • In subkey: HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings
    Sets value: "AutoConfigURL"
    With data: "%APPDATA%\qe76idrp8.txt"

• You see the following mutex:
  • {27445486-EE5F-4C66-A4D3-AD5F08E71516}

Last update 19 May 2015

 

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