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Backdoor:Win32/Rescoms.A

First posted on 21 February 2017.
Source: Microsoft

Aliases :

There are no other names known for Backdoor:Win32/Rescoms.A.

Explanation :

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

• %TEMP%\install.bat
• \sistema\crrsc.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: "remcos"
With data: ""\sistema\crrsc.exe""
In subkey: HKLM\Software\Microsoft\Windows\CurrentVersion\Run
Sets value: "remcos"
With data: ""\sistema\crrsc.exe""

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

Payload

Allows backdoor access and control

This threat can give a malicious hacker access and control of your PC. They can then perform a number of different actions, such as:

• Deleting files
• Downloading and running files
• Logging your keystrokes or stealing your sensitive data
• Modifying your system settings
• Running or stopping applications
• Spreading malware to other PCs
• Uploading files

Additional information

Creates a mutex

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

• ESTRARS_LBFGFCDXCSHRR-593EK0

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 a82f8fcf756ef9a735276e3371f234928f29bd84.

Last update 21 February 2017

 

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