From Linear to Complex: An Upgrade in RansomHouse Encryption

RansomHouse is a ransomware-as-a-service (RaaS) operation run by a group that we track as Jolly Scorpius. Recent samples of the associated binaries used in RansomHouse operations reveal a significant upgrade in encryption. This article explores the upgrade of RansomHouse encryption Read More …

Operation ForumTroll continues: Russian political scientists targeted using plagiarism reports

In March 2025, we discovered Operation ForumTroll, a series of sophisticated cyberattacks exploiting the CVE-2025-2783 vulnerability in Google Chrome. Kaspersky researchers previously detailed the malicious implants used in the operation: the LeetAgent backdoor and the complex spyware Dante, developed by Read More …

Hacking group says it’s extorting Pornhub after stealing users’ viewing data

The hacking group Scattered Lapsus$ Hunters, which includes members of a gang known as ShinyHunters, said it is attempting to extort porn site Pornhub, after claiming to have stolen personal information belonging to the website’s premium members. On Friday, Pornhub Read More …

Venezuela’s PDVSA suffers cyberattack

Venezuela’s state-run oil company PDVSA has been subject to a cyberattack, it said on Monday, adding its operations were unaffected, even though four sources said systems remained down and oil cargo deliveries were suspended. PDVSA and the oil ministry blamed Read More …

Amazon security boss blames Russia’s GRU for years-long energy-sector hacks

Russia’s Main Intelligence Directorate (GRU) is behind a years-long campaign targeting energy, telecommunications, and tech providers, stealing credentials and compromising misconfigured devices hosted on AWS to give the Kremlin’s snoops persistent access to sensitive networks, according to Amazon’s security boss. Read More …

SantaStealer is Coming to Town: A New, Ambitious Infostealer Advertised on Underground Forums

Rapid7 Labs has identified a new malware-as-a-service information stealer being actively promoted through Telegram channels and on underground hacker forums. The stealer is advertised under the name “SantaStealer” and is planned to be released before the end of 2025. Open Read More …

PayPal closes loophole that let scammers send real emails with fake purchase notices

After an investigation by BleepingComputer, PayPal closed a loophole that allowed scammers to send emails from the legitimate [email protected] email address. Following reports from people who received emails claiming an automatic payment had been cancelled, BleepingComputer found that cybercriminals were Read More …

French government hit by cyberattack

The French Interior Ministry has confirmed recently suffering a cyberattack, but the consequences are still being determined. The French Minister of Interior said the attack took place at night, between December 11 and December 12. Email servers were compromised, allowing Read More …

SHADOW-VOID-042 Targets Multiple Industries with Void Rabisu-like Tactics

In October and November 2025, campaigns targeting sectors such as energy, defence, pharmaceuticals, and cybersecurity shared characteristics with older campaigns attributed to Void Rabisuopen on a new tab (also known as ROMCOM, Tropical Scorpius, Storm-0978). Void Rabisu is known to Read More …

Hunting for Mythic in network traffic

Threat actors frequently employ post-exploitation frameworks in cyberattacks to maintain control over compromised hosts and move laterally within the organization’s network. While they once favored closed-source frameworks, such as Cobalt Strike and Brute Ratel C4, open-source projects like Mythic, Sliver, Read More …