RANSOM_BTCWARE.AA
RiskWare.BTCWare.Decoder (Malwarebytes);
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
213,504 bytes
EXE
No
09 Aug 2017
Displays windows
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 adds the following mutexes to ensure that only one of its copies runs at any one time:
- BTCWXXX
Other Details
This Ransomware executes the following command to disable/stop/delete Windows components:
- cmd.exe /c vssadmin.exe Delete Shadows /All /Quiet
- cmd.exe /c bcdedit.exe /set {default} recoveryenabled No
- cmd.exe /c bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures
- cmd.exe /c vssadmin.exe delete shadows /all /quiet
NOTES:
This ransomware does not encrypt files, but displays the following instead:
SOLUTION
9.850
13.584.08
09 Aug 2017
13.585.00
10 Aug 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_BTCWARE.AA. 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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