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REvil Ransomware Gang Starts Auctioning Victim Data

Krebs on Security

“Others have gotten the message about the need for good backups, and probably don’t need to pay. A report published in mid-April by cryptocurrency research firm Chainalysis found that ransomware payments “have decreased significantly since the COVID-19 crisis intensified in the U.S. and Europe in early March.”

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Cryptocurrency exchange BuyUcoin hacked, data of 325K+ users leaked

Security Affairs

Indian cryptocurrency exchange Buyucoin suffered a security incident, threat actors leaked sensitive data of 325K users. A new incident involving a cryptocurrency exchange made the headlines, the India-based cryptocurrency exchange suffered a security incident, threat actors leaked sensitive data of 325K users on the Dark Web.

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Security Affairs newsletter Round 493 by Pierluigi Paganini – INTERNATIONAL EDITION

Security Affairs

Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. CISA adds Windows and Qualcomm bugs to its Known Exploited Vulnerabilities catalog Three new Ivanti CSA zero-day actively exploited in attacks Ukrainian national pleads guilty in U.S.

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Babuk ransomware gang says it’s no longer interested in encrypting data, would rather kidnap it instead

Hot for Security

In the early days of ransomware things were fairly simple: malware would infect your company’s infrastructure, encrypting your valuable data with a secret key that was only known to your attackers. If you had shown the foresight of making secure backups in advance, you could get back up and running again.

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Medusa ransomware hit over 300 critical infrastructure organizations until February 2025

Security Affairs

Medusa operators leverage legitimate remote access tools like AnyDesk, Atera, and Splashtop, alongside RDP and PsExec, to move laterally and locate files for exfiltration and encryption. Encryption is executed using gaze.exe , which disables security tools, deletes backups, and encrypts files with AES-256 before dropping a ransom note.

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iNSYNQ Ransom Attack Began With Phishing Email

Krebs on Security

“It was a very substantial amount, but we had the money wired and were ready to pay it in cryptocurrency in the case that it made sense to do so,” he told customers. Because of the quick reaction we had, we were able to contain the encryption part” to roughly 50 percent of customer systems, he said.

Phishing 229
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The BlueNoroff cryptocurrency hunt is still on

SecureList

Also, we have previously reported on cryptocurrency-focused BlueNoroff attacks. It appears that BlueNoroff shifted focus from hitting banks and SWIFT-connected servers to solely cryptocurrency businesses as the main source of the group’s illegal income. Malware infection. PROCESS_ID. #. DLL_FILE_SIZE. DLL_FILE_DATA.