Black Claw Ransomware | Jigsaw Evolved? | Summary and Q&A

TL;DR

A new ransomware called Black Claw is highly destructive, resembling Jigsaw, and has already been detected by multiple antivirus engines, including Microsoft.

Key Insights

• ❓ Black Claw is a destructive ransomware that resembles Jigsaw.
• ❓ Microsoft has recognized Black Claw and included it in their threat encyclopedia.
• 😒 The ransomware uses obfuscation, execution, dynamic library linking, diagnostic, and cryptography techniques.
• 🕵️ Windows Defender can detect and remove Black Claw from infected systems.
• 📁 There is currently no known method to decrypt files encrypted by Black Claw without paying the ransom.
• 🧑‍🤝‍🧑 Users should keep their antivirus software up to date, practice safe browsing habits, and regularly back up their files.
• 💗 Black Claw represents a growing threat in the realm of ransomware attacks.

Transcript

hello and welcome to the PC security channel today we'll be taking a look at a brand new ransomware called black claw which is quite destructive even though at first sight it does resemble something like jigsaw now interestingly when I first came across the sample it was already picked by 17 engines out of 71 and Microsoft was one of them and as of... Read More

Questions & Answers

Q: What is Black Claw ransomware and how does it behave?

Black Claw is a dangerous ransomware that encrypts files on a victim's computer, rendering them inaccessible unless a ransom is paid. It masquerades as a benign file and executes in the background without the user's knowledge.

Q: How does Microsoft's recognition of Black Claw help protect users?

Microsoft's inclusion of Black Claw in their threat encyclopedia means that Windows Defender, their antivirus program, can successfully detect and remove the ransomware from infected systems, providing a layer of protection for users.

Q: Can Black Claw ransomware be decrypted without paying the ransom?

Currently, there is no known method to decrypt files encrypted by Black Claw without paying the ransom. Renaming the files or attempting to manipulate them does not appear to have any effect on the encryption.

Q: What should users do to protect themselves from Black Claw ransomware?

To protect against Black Claw ransomware, users should ensure their antivirus programs, such as Windows Defender, are up to date. Additionally, practicing safe browsing habits, regularly backing up important files, and avoiding suspicious file downloads or email attachments can help prevent infection.

Summary & Key Takeaways

• Black Claw is a new ransomware that is deceptive in appearance, seemingly harmless, but is actually destructive.

• Microsoft has recognized Black Claw as a threat and included it in their threat encyclopedia.

• The ransomware is coded in C# and uses obfuscation, execution, dynamic library linking, diagnostic, and cryptography techniques.