Ransom.PHP.DRAKONLOCK.THDOCBE
Trojan-Ransom.FileCrypter (IKARUS)
Windows
Threat Type: Ransomware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
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 drops files as ransom note.
TECHNICAL DETAILS
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 connects to the following possibly malicious URL:
- https://{BLOCKED}in.com/xfsaxi82
Ransomware Routine
This Ransomware avoids encrypting files with the following strings in their file path:
- .htaccess
- .FS
- Dragon_Readme.html
- Readme.html
- rans
It appends the following extension to the file name of the encrypted files:
- .FS
It drops the following file(s) as ransom note:
- {Encrypted Directory}\Dragon_Readme.html → ransom note content is retrieved from a Pastebin URL
SOLUTION
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 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.PHP.DRAKONLOCK.THDOCBE. 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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