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TrojanDownloader:MSIL/Samll!rfn

First posted on 03 January 2017.
Source: Microsoft

Aliases :

There are no other names known for TrojanDownloader:MSIL/Samll!rfn.

Explanation :

Installation

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: "hhc"
With data: "%ProgramData%\microsoft\hhc.exe"

Payload

Downloads malware or unwanted software

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

Connects to a remote host

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

• sitedeveloper.ir using port 80

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

We have seen this threat access online content, including:

• File.xml

Additional information

Creates a mutex

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

• .exe

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 7291bbbd875cfaee62c3fa96db3de3b3801bb44e.

Last update 03 January 2017

 

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