RANSOM_CRYPTOQKG.A

Dubbed as qkG, this file-encrypting ransomware is written entirely in Visual Basics for Applications (VBA) macros. This is rare considering ransomware families that use malicious macros to download the malware After this malware infects the normal.dot template. files are then encrypted after they are closed.

This Ransomware arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

Arrival Details

This Ransomware arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

Other Details

This Ransomware does the following:

• Executes malicious macro when user closes the document.
• Checks version of application
• Set privacy settings by modifying registries
• Appends the following ransomnote after the encrypted content in the document:
  I’m QkG@PTM17! by TNA@MHT-TT2
  Send $300 to the BTC Address: {BLOCKED}dTgtesLWthysLQQtsuszFbpydg
  Contact Email: {email}
• Targets opened documents in the affected system.
• Encrypts the contents of opened document after the user closes it.

This is the Trend Micro detection for Microsoft Word documents that are compromised through the insertion of a malicious macro.