Incidents

Update on new GPCode

On 26th January, we intercepted a new variant of GPCode, Virus.Win32.GPCode.ac.

This program, like its predecessors, encrypts users’ files. The author of the program demands payment for decrypting the files.

The new variant of GPCode was widely spammed throughout the Russian segement of the Internet. In spite of our warnings not to open attachments to email if you don’t know the sender, we’ve received a large number of reports from infected users.

Yesterday we added decryption for encrypted files to our antivirus databases. However, GPCode uses a number of encryption keys. It may be that some users’ data has been encrypted by keys which we haven’t seen yet. These users therefore won’t be able to use our antivirus to restore their data. We’d therefore urge anyone who’s been hit by this new version of GPCode to contact us.

In conclusion, as we’ve said many times before: sending money to the author(s) of these programs simply provides motivation to create another variant. Don’t ever send money to a cyber criminal. Send your infected files to us instead.

Update on new GPCode

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Reports

Kimsuky’s GoldDragon cluster and its C2 operations

Kimsuky (also known as Thallium, Black Banshee and Velvet Chollima) is a prolific and active threat actor primarily targeting Korea-related entities. In early 2022, we observed this group was attacking the media and a think-tank in South Korea.

Andariel deploys DTrack and Maui ransomware

Earlier, the CISA published an alert related to a Stairwell report, “Maui Ransomware.” Our data should openly help solidify the attribution of the Maui ransomware incident to the Korean-speaking APT Andariel, also known as Silent Chollima and Stonefly.

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