DynA-Crypt Ransomware | feat. Karsten from G Data | Summary and Q&A

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February 16, 2017
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The PC Security Channel
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DynA-Crypt Ransomware | feat. Karsten from G Data

TL;DR

DinoCrypt is a unique ransomware and spyware combination that steals data and encrypts files, presenting challenges for victims and security professionals.

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Questions & Answers

Q: How did Carsten Hen come across DinoCrypt?

Carsten discovered DinoCrypt through string analysis on VirusTotal, using rules and keywords related to ransomware, such as Ransom and Bitcoin, to identify potential threats.

Q: Can DinoCrypt be decrypted?

While it's possible that DinoCrypt can be decrypted, Carsten did not provide details to avoid giving hints to the ransomware authors. Decryptors are only developed if there are active victims.

Q: Is DinoCrypt still in development or already in the wild?

DinoCrypt is already in the wild, as it has been released on a hacking site along with a malware creation toolkit.

Q: What percentage of ransomware is created using toolkits?

It is difficult to determine the exact percentage, but the biggest players in the ransomware industry tend to create their own samples. However, there is a significant number of open-source ransomware created using toolkits or modified source code.

Q: What are the risks of open-source ransomware?

The availability of open-source ransomware enables individuals with limited technical knowledge and resources to enter the ransomware business, leading to an increase in the number of ransomware families and potential threats.

Q: Does DinoCrypt spy on data while encrypting files?

Yes, DinoCrypt is a unique combination of ransomware and spyware. While it is common for malware families to combine different features, DinoCrypt specifically steals data while encrypting files, which is not commonly seen.

Q: How difficult is it to remove DinoCrypt ransomware?

Removing DinoCrypt ransomware may not be extremely difficult, but it can restrict access to various system functions and files. Bootable solutions or recovery consoles may be required to effectively remove it.

Q: Can victims pay the ransom and regain access to their files?

DinoCrypt demands a relatively reasonable ransom of $50. While paying the ransom may offer a chance to regain access to files, it is crucial for victims to contact security professionals, like G Data, who may be able to develop a decryptor.

Summary & Key Takeaways

  • Carsten Hen from G data discovered DinoCrypt ransomware through string analysis on VirusTotal and identified its use of PowerShell and data stealing capabilities.

  • DinoCrypt is already being used in the wild, as evidenced by its release on a hacking site and the presence of a malware creation toolkit used to build it.

  • The ransomware/spyware combo encrypts files and steals data, including keylogging and possibly voice recordings, presenting significant challenges for victims and security professionals.

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