BKDR_FARFLI.AJJ

This backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It arrives as a component bundled with malware/grayware packages.

It does not have any propagation routine.

It executes commands from a remote malicious user, effectively compromising the affected system. It connects to a website to send and receive information. However, as of this writing, the said sites are inaccessible.

It does not drop any other file.

It requires its main component to successfully perform its intended routine.

Arrival Details

This backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It arrives as a component bundled with malware/grayware packages.

Installation

This backdoor adds the following mutexes to ensure that only one of its copies runs at any one time:

• AAAAAA{random}/{random}
• Global\UUPP{random}

Other System Modifications

This backdoor adds the following registry entries:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services
Type = "120"

Propagation

This backdoor does not have any propagation routine.

Backdoor Routine

This backdoor executes the following commands from a remote malicious user:

• Get OS Version
• Get Host Name
• Get System Information
• Get Drive Information
• Perform Remote Shell
• Manage Registries
• Screen Capture
• Manage Services
• Download File
• Manage Files

It connects to the following websites to send and receive information:

• 52cao.{BLOCKED}2.org:7752

However, as of this writing, the said sites are inaccessible.

Dropping Routine

This backdoor does not drop any other file.

Other Details

This backdoor requires its main component to successfully perform its intended routine.

NOTES:

It does not have rootkit capabilities.

It does not exploit any vulnerability.