- Threat Encyclopedia
- Malware
- BKDR_FORSHARE.A
FORSHARE
Windows
This malware is linked to the discovery of fileless crytocurrency miner TROJ64_COINMINER.QO late August 2017.
This Backdoor executes commands from a remote malicious user, effectively compromising the affected system. However, as of this writing, the said sites are inaccessible.
83,459 bytes
DLL
Yes
03 Aug 2017
Connects to URLs/IPs, Downloads files, Terminates processes
Backdoor Routine
This Backdoor executes the following commands from a remote malicious user:
It connects to the following URL(s) to send and receive commands from a remote malicious user:
However, as of this writing, the said sites are inaccessible.
Download Routine
This Backdoor saves the files it downloads using the following names:
(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)
NOTES:
This backdoor installs and executes script in WMI System Classes. The script is detected as JS_COINMINER.QO.
The script executes the following commands:
The script connects to the following C&C to obtain a checklist of processes to terminate: http://wmi.{BLOCKED}s.top:8888/kill.html
9.850
13.572.08
04 Aug 2017
13.573.00
05 Aug 2017
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Scan your computer with your Trend Micro product to clean files detected as BKDR_FORSHARE.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
NOTES:
Deleting Malicious Script
To delete the malicious script created by this malware using WMI Command-line Tool: