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DDoS:MSIL/Bracobo.A

First posted on 29 January 2015.
Source: Microsoft

Aliases :

There are no other names known for DDoS:MSIL/Bracobo.A.

Explanation :

Threat behavior

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

• %APPDATA%\microsoft\aelookupsvi.exe
• %APPDATA%\microsoft\profsvc.exe
• \c73937393.bat

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: "Application Experience"
With data: "%APPDATA%\microsoft\aelookupsvi.exe"



The malware uses code injection to make it harder to detect and remove. It can inject code into running processes.



Payload


Connects to a remote host

We have seen this threat connect to a remote host, including:

• camohomohopper.no-ip.biz using port 55151
• camohomopopper.no-ip.biz using port 55152

Malware can connect to a remote host to do any of the following:

• Check for an Internet connection
• Download and run files (including updates or other malware)
• Report a new infection to its author
• Receive configuration or other data
• Receive instructions from a malicious hacker
• Search for your PC location
• Upload information taken from your PC
• Validate a digital certificate

This malware description was published using automated analysis of file SHA1 6b414947e04c3e3d99b60dced26e760441276d57. Symptoms

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

• You see these files:
  • %APPDATA%\microsoft\aelookupsvi.exe
  • %APPDATA%\microsoft\profsvc.exe
  • \c73937393.bat

• You see registry modifications such as:
  
  • In subkey: HKCU\software\microsoft\windows\currentversion\run
    Sets value: "Application Experience"
    With data: "%APPDATA%\microsoft\aelookupsvi.exe"
    
    

• The presence of a mutex such as:
  • DC_MUTEX-FY6YKFW

Last update 29 January 2015

 

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