RANSOM_GHACK.THABBH
Hoax.Win32.FakeRansom.cz (KASPERSKY), Ransom-GHack!18A28F086A66 (NAI), Riskware/FakeRansom (FORTINET)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Ransomware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
226,304 bytes
EXE
Yes
22 Jan 2018
Terminates processes
Arrival Details
This Ransomware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Ransomware drops the following files:
- %System Root%\explorerkiller.bat
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
Process Termination
This Ransomware terminates the following processes if found running in the affected system's memory:
- taskmgr.exe
- explorer.exe
Other Details
This Ransomware does the following:
- Execute the following commands using the dropped batch file:
taskkill /f /IM explorer.exe
NOTES:
This ransomware does not encrypt any files in the computer. It instead displays the following lock screen:
The correct password is 1234567890. If the correct password is typed in, it does not do anything. If the wrong password is typed in, it shows the following messages:
SOLUTION
9.850
13.920.04
22 Jan 2018
13.921.00
23 Jan 2018
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
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Restart in Safe Mode
Step 4
Search and delete this file
- %System Root%\explorerkiller.bat
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as RANSOM_GHACK.THABBH. 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.
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