RANSOM_ZIPRAMEN.A
Mal/ZipRamen-A (Sophos_Lite); W32.Golroted (Norton); Trojan horse Atros5.CEXT (AVG)
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 terminates itself if it detects it is being run in a virtual environment.
TECHNICAL DETAILS
19,456 bytes
EXE
No
14 May 2017
Connects to URLs/IPs, Steals information, 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.
Information Theft
This Ransomware gathers the following data:
- Mother Board Code
- ZIP Password
- Machine Name
- OS Full Name
- OS Version: Version String
- OS Version: Service Pack
- OS Platform
- OS Version
- Total Physical Memory
- Mac Address
- CPU Name
- Video Card
- Processor Count
- Username
Stolen Information
This Ransomware sends the gathered information via HTTP POST to the following URL:
- https://script.{BLOCKED}e.com/macros/s/AKfycbz5YBBStQ1g_RauMp1Y-psBBObGiK2E6c4lqss898wad1fp0To/exec
Other Details
This Ransomware connects to the following URL(s) to check for an Internet connection:
- https://script.{BLOCKED}e.com/macros/s/AKfycbz5YBBStQ1g_RauMp1Y-psBBObGiK2E6c4lqss898wad1fp0To/exec
It terminates itself if it detects it is being run in a virtual environment.
It does the following:
- It displays a message box if it detects it is being run in a virtual environment.
- It moves each files with the following extension names from "%User Profile%\Music" to a password protected zip file with the filename "%User Temp%\Music\{original filename}.ramen":
- .doc
- .png
- .jpg
- .gif
- .zip
- .rar
- .bmp
- .7z
- .wav
- .wmv
- .tif
- .part1
- .csv
- .xls
- .docx
- .xlsx
- .ppt
- .pptx
- .avi
- .rmvb
- .rm
- .mp4
- .ai
- .psd
- .webm
- .webp
- .mkv
- .dat
- .sav
- .save
- .mp3
- .asp
- .vb
- .js
- .php
- .cs
- .py
- .rb
- .css
- .html
- .sav
- .apk
- .torrent
- .db
- .mp4
It checks if the following virtual machine- or sandbox-related registry entries are present in the affected system:
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Control\Class\{4D36E968-E325-11CE-BFC1-08002BE10318}\
0000
DriverDesc = "{string contains: VMWare}"
SOLUTION
9.850
13.440.01
14 May 2017
13.441.00
15 May 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
Scan your computer with your Trend Micro product to delete files detected as RANSOM_ZIPRAMEN.A. 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 4
Restore encrypted files from backup.
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