RANSOM.MSIL.TUNCA.THOAOCAI
HEUR:Trojan-Ransom.MSIL.Gen.gen (Kaspersky) ; Trojan.Gen.2 (Norton)
Windows
Threat Type: Ransomware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
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 encrypts files found in specific folders.
TECHNICAL DETAILS
17,408 bytes
EXE
No
23 Dec 2018
Displays message/message boxes, 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 does the following:
- Displays the following after execution:
Ransomware Routine
This Ransomware encrypts files found in the following folders:
- %Desktop%
- %User Profile%\Music
- %User Profile%\Documents
- %User Profile%\Pictures
- %User Profile%\Videos
(Note: %Desktop% is the current user's desktop, which is usually C:\Documents and Settings\{User Name}\Desktop on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\Desktop on Windows Vista, 7, and 8.. %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, 7, and 8.)
It appends the following extension to the file name of the encrypted files:
- .tunca
SOLUTION
9.850
14.768.04
23 Jan 2019
14.767.00
24 Jan 2019
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 delete files detected as RANSOM.MSIL.TUNCA.THOAOCAI. 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:
Step 3
Restore encrypted files from backup.
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