RANSOM_SCRNLOCKER.X
TR/RedCap.kweyv (ANTIVIR); Generik.MENXVVO!tr (FORTINET);
Windows
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 connects to certain websites to send and receive information. However, as of this writing, the said sites are inaccessible.
It encrypts files with specific file extensions. It encrypts files found in specific folders.
TECHNICAL DETAILS
140,288 bytes
EXE
No
12 Nov 2017
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 website to send and receive information:
- https://projectfun.{BLOCKED}ebsites.net/api/CheckClientPaid
- https://projectfun.{BLOCKED}ebsites.net/api/GetDecKey
- https://projectfun.{BLOCKED}ebsites.net/api/GetInsertTime
- https://projectfun.{BLOCKED}ebsites.net/api/SetClientPaid
- https://projectfun.{BLOCKED}ebsites.net/api/CreatRsaClient
- https://projectfun.{BLOCKED}ebsites.net/api/AddClientKey
- https://projectfun.{BLOCKED}ebsites.net/api/CheckIfExist
It drops the following file(s)/component(s):
- {Malware Path}\{File Name}.{File Extension}.aes.key - contains file RSA key
However, as of this writing, the said sites are inaccessible.
Ransomware Routine
This Ransomware encrypts files with the following extensions:
- .doc
- .docx
- .jpg
- .png
It encrypts files found in the following folders:
- {Malware Path}
It appends the following extension to the file name of the encrypted files:
- .aes
NOTES:
This ransomware waits for a server response to execute. Since the said site is inaccessible, it fails to perform its intended routine.
SOLUTION
9.850
13.836.05
11 Dec 2017
13.837.00
12 Dec 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
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
Search and delete these files
- {Malware Path}\{File Name}.{File Extension}.aes.key
Step 4
Scan your computer with your Trend Micro product to delete files detected as RANSOM_SCRNLOCKER.X. 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 5
Restore encrypted files from backup.
Did this description help? Tell us how we did.