RANSOM_HIDDENTEARANGLEWARE.A
Ransom.HiddenTear(Norton);Mal/MSILRnsm-A(Sophos);Ransom:MSIL/Ryzerlo.A(Microsoft);Gen:Heur.Ransom.HiddenTears.1(Bitdefender)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Ransomware
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
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
211,968 bytes
EXE
No
23 Mar 2017
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.
Installation
This Ransomware drops the following files:
- %Desktop%\READ_ME.txt ← Ransom Note
(Note: %Desktop% is the desktop folder, where it usually is C:\Documents and Settings\{user name}\Desktop in Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\Desktop in Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
Other Details
This Ransomware encrypts files with the following extensions:
- .asp
- .aspx
- .csv
- .doc
- .docx
- .exe
- .html
- .jpg
- .mdb
- .odt
- .php
- .png
- .ppt
- .pptx
- .psd
- .rar
- .sln
- .sql
- .txt
- .xls
- .xlsx
- .xml
- .zip
It renames encrypted files using the following names:
- {Original File Name and Extension}.AngleWare
It does the following:
- Encrypts files in %Desktop% and %User Profile%\Pictures
- Sends the computer name, username, and key generated via the url: http://www.{BLOCKED}enter.com/w00t.php?g0ttrap={computername}-{username}%20{key}
NOTES:
It drops the following ransom note:
SOLUTION
9.850
13.296.01
23 Mar 2017
13.297.00
24 Mar 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
Restart in Safe Mode
Step 4
Restart in normal mode and scan your computer with your Trend Micro product for files detected as RANSOM_HIDDENTEARANGLEWARE.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 5
Search and delete this file
- %Desktop%\READ_ME.txt
Step 6
Restore encrypted files from backup.
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