RANSOM_BLACKMAIL.A
Trojan.GenericKD.5309913 (Bitdefender); Ransom.Blackmail.Gen!c (AegisLab)
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.
TECHNICAL DETAILS
17,920 bytes
EXE
No
01 Jun 2017
Drops 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.
Installation
This Ransomware drops and executes the following files:
- %User Temp%\{Temp File Name}.html
Other Details
This Ransomware displays the following message boxes:
BlackMail Infection
It does the following:
- It displays the following in the message box:
- All logical drives and its drive type (i.e. Fixed, Removable, or Network)
- The total number of files and folders located at the drive root
- A file within the first 100 that has one of the following extension names:
- .doc
- .docx
- .xls
- .xlsx
- .msg
- .csv
- An encrypted string of the whole message
- It contains an uncalled function which has the capability to provide HTTP request to "https://twitter.com/search?q={URL encoded string}&src=typd"
SOLUTION
9.850
13.444.04
01 Jun 2017
13.445.00
02 Jun 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 this file
- %User Temp%\{Temp File Name}.html
Step 4
Scan your computer with your Trend Micro product to delete files detected as RANSOM_BLACKMAIL.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.
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