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TrojanProxy:Win32/Bunitu.O

First posted on 26 January 2016.
Source: Microsoft

Aliases :

There are no other names known for TrojanProxy:Win32/Bunitu.O.

Explanation :

This threat tries to bypass your firewall by modifying the registry. For example:

HKLM\system\controlset001\services\sharedaccess\parameters\firewallpolicy

You might need to restore your Windows Firewall settings.



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

• %LOCALAPPDATA%\rislisy.dll

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: "rislisy"
With data: "rundll32.exe "%LOCALAPPDATA%\rislisy.dll",rislisy"

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:

• a.siditrax.net using port 53

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

Bypasses firewall

This threat can modify, bypass, or disable your firewall. It can do so by changing your firewall settings, or by adding a new rule so that it, or other applications, aren't detected.

You might need to restore your Windows Firewall settings.



Additional information

Creates a mutex

This threat can create one or more mutexes on your PC. For example:

• IGBIASAARMOAIZ

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 b6c43e102594cd03a3ade99d22bb6655e738b227.

Last update 26 January 2016

 

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