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How Ransomware Uses Encryption – And Evolves

eSecurity Planet

Ransomware attacks are a huge concern these days, especially for corporate networks. Indeed, when the ransomware reaches its target, it’s practically game over. The malware encrypts files and spreads to the entire system to maximize damage, which forces companies to lock down the whole network to stop the propagation.

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LockFile Ransomware uses a new intermittent encryption technique

Security Affairs

Recently emerged LockFile ransomware family LockFile leverages a novel technique called intermittent encryption to speed up encryption. LockFile ransomware gang started its operations last month, recently it was spotted targeting Microsoft Exchange servers using the recently disclosed ProxyShell vulnerabilities.

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8Base ransomware operators use a new variant of the Phobos ransomware

Security Affairs

8Base ransomware operators were observed using a variant of the Phobos ransomware in a recent wave of attacks. Cisco Talos researchers observed 8Base ransomware operators using a variant of the Phobos ransomware in recent attacks. The ransomware component is then decrypted and loaded into the SmokeLoader process’ memory.

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OmniVision disclosed a data breach after the 2023 Cactus ransomware attack

Security Affairs

The digital imaging products manufacturer OmniVision disclosed a data breach after the 2023 ransomware attack. In 2023, the imaging sensors manufacturer was the victim of a Cactus ransomware attack. The threat actors had access to the company systems between September 4 and September 30, 2023, when they deployed ransomware.

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Ransomware Now Leaking Stolen Documents

Schneier on Security

Originally, ransomware didn't involve any data theft. Malware would encrypt the data on your computer, and demand a ransom for the encryption key. Now ransomware is increasingly involving both encryption and exfiltration. Recently, the aerospace company Visser Precision was hit by the DoppelPaymer ransomware.

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Ukrainian Police Nab Six Tied to CLOP Ransomware

Krebs on Security

Authorities in Ukraine this week charged six people alleged to be part of the CLOP ransomware group , a cybercriminal gang said to have extorted more than half a billion dollars from victims. The CLOP gang seized on those flaws to deploy ransomware to a significant number of Accellion’s FTA customers , including U.S.

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Wanted: Disgruntled Employees to Deploy Ransomware

Krebs on Security

Criminal hackers will try almost anything to get inside a profitable enterprise and secure a million-dollar payday from a ransomware infection. Abnormal Security documented how it tied the email back to a young man in Nigeria who acknowledged he was trying to save up money to help fund a new social network he is building called Sociogram. .”