RANSOM_GENASOM.THBAFH
Ransom:Win32/Genasom (Microsoft); Mal/Genasom-A (Sophos AV)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Ransomware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Dropped by other malware, 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.
It is capable of encrypting files in the affected system.
It encrypts files with specific file extensions. It encrypts files found in specific folders.
TECHNICAL DETAILS
32,256 bytes
EXE
No
13 Feb 2018
Displays windows, Encrypts files
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.
Other Details
This Ransomware is capable of encrypting files in the affected system.
Ransomware Routine
This Ransomware encrypts files with the following extensions:
- .doc
- .docx
- .xls
- .xlsx
- .ppt
- .pptx
- .txt
- .jpg
- .png
- .gif
- .dng
- .mp3
- .mp4
- .rmvb
- .flac
- .ape
- .avi
- .mkv
- .mpg
- .jpeg
It encrypts files found in the following folders:
- %User Profile%\
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)
It appends the following extension to the file name of the encrypted files:
- .干物妹!
NOTES:
Upon execution, this ransomware displays the following window:
SOLUTION
9.850
13.970.05
16 Feb 2018
13.971.00
17 Feb 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
Identify and terminate files detected as RANSOM_GENASOM.THBAFH
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as RANSOM_GENASOM.THBAFH. 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.
Step 6
Restore encrypted files from backup.
Step 7
Scan your computer with your Trend Micro product to delete files detected as RANSOM_GENASOM.THBAFH. 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 the following Trend Micro Support pages for more information:
Did this description help? Tell us how we did.