This week, international law enforcement operations went on the offensive, making arrests in numerous countries for ransomware-related activities.
Today, Europol announced that twelve individuals were arrested today for their links to over 1,800 ransomware attacks in 71 countries.
The arrested hackers include affiliates and penetration testers for the LockerGoga, MegaCortex, and Dharma operations, including those suspected to be behind the 2019 attack against Norsk Hydro.
German law enforcement is also believed to have identified a core member of the REvil ransomware gang.
The other big news this week is the revealment of a BlackMatter decryptor created by Emsisoft that has been secretly used to help victims recover their files without paying a ransom.
Avast also released two decryptors this week – one for Babuk Ransomware and another that decrypts files encrypted by Atom Silo and LockFile files.
Finally, the NRA suffered a ransomware attack by the Grief ransomware operation, which is linked to the US sanctioned Evil Corp hacking group.
Today, the Grief gang removed their NRA from their data leak site, indicating that the NRA may have paid the ransom demand.
dnwls0719 found a new BigBossHorse ransomware variant called ‘WhiteHorse’ that appends the .WhiteHorse extension.
October 24th 2021
Cybersecurity firm Emsisoft has been secretly decrypting BlackMatter ransomware victims since this summer, saving victims millions of dollars.
PCrisk found a new Dharma Ransomware variant that appends the .lsas extension.
October 26th 2021
The FBI said on Monday that Ranzy Locker ransomware operators had compromised at least 30 US companies this year from various industry sectors.
Even though the LockBit ransomware group has been operating since September 2019, up until June this year, they have been a marginal player on the ransomware landscape.
PCrisk found a new STOP Ransomware variant that appends the .rugj extension.
Czech cybersecurity software firm Avast has created and released a decryption tool to help Babuk ransomware victims recover their files for free.
The Grief ransomware gang claims to have attacked the National Rifle Association (NRA) and released stolen data as proof of the attack.
October 28th 2021
Researchers have spotted two campaigns linked to either the REvil ransomware gang or the SolarMarker backdoor that use SEO poisoning to serve payloads to targets.
Amigo-A found the new Owl Ransomware that appends the .54bb47h extension to encrypted files.
The Hive ransomware gang now also encrypts Linux and FreeBSD using new malware variants specifically developed to target these platforms.
That’s it for this week! Hope everyone has a nice weekend!
This content was originally published here.