RANSOM_HIDDENTEARDRILL.A

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.

It encrypts files with specific file extensions. It encrypts files found in specific folders. It drops files as ransom note.

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.

Autostart Technique

This Ransomware adds the following registry entries to enable its automatic execution at every system startup:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\
Windows\Currentversion\Run
My appication = "{Executed Malware Filename}"

Process Termination

This Ransomware terminates processes or services that contain any of the following strings if found running in the affected system's memory:

• Taskmgr

Other Details

This Ransomware connects to the following website to send and receive information:

• http://{BLOCKED}.{BLOCKED}.1.100/CyberdrillCandC/password.php?

It displays a pop-up window with the following message:

Ransomware Routine

This Ransomware encrypts files with the following extensions:

• .png
• .jpg

It encrypts files found in the following folders:

• %Desktop%

(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.)

It appends the following extension to the file name of the encrypted files:

• .cyberdrill

It drops the following file(s) as ransom note:

• %Desktop%\test\READ_IT.txt

(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.)

It leaves text files that serve as ransom notes containing the following text:

• Files has been encrypted with Cyberdrill_2 Ransomware,and many Users will not be able to access sites host ... This is not a joke,Check ours sites now. Sites will be DDoS-ed starting in 24 hours if you don't pay only 30 Bitcoins @ {BLOCKED}KHtF11CAd5eHpgmdPaz8723NvLG63. If you don't pay in next 24 hours, attack will start, your service going down permanently. Price to stop will increase to 1 BTC and will go up 1 BTC for every day of attack. Our attacks are extremely powerful . No cheap protection will help.Bitcoin is anonymous, nobody will ever know you cooperated.