CISA and Partners Release Update to Malware Analysis Report BRICKSTORM Backdoor

Today, the Cybersecurity and Infrastructure Security Agency (CISA), National Security Agency, and Canadian Centre for Cyber Security released an update to the Malware Analysis Report BRICKSTORM Backdoor with indicators of compromise (IOCs) and detection signatures for additional BRICKSTORM samples. This Read More …

FBI: Senior U.S. Officials Continue to be Impersonated in Malicious Messaging Campaign

This is an update to Public Service Announcement I-051525-PSA, released May 15, 2025, which can be found here. Activity dating back to 2023 reveals malicious actors have impersonated senior U.S. state government, White House, and Cabinet level officials, as well Read More …

Police arrest suspect over Microsoft 365 cyber attack

The Nigeria Police Force National Cybercrime Centre (NPF-NCCC) has apprehended a suspected cyber fraudster linked to coordinated attacks on Microsoft 365 email platforms used by corporate organisations. The arrest followed an intelligence-led investigation triggered by credible information from Microsoft Corporation Read More …

Denmark blames Russia for cyberattacks on water utility and local government websites

The Danish government has accused Russia of being behind two “destructive and disruptive” cyber-attacks in what it describes as “very clear evidence” of a hybrid war. The Danish Defence Intelligence Service (DDIS) announced on Thursday that Moscow was behind a Read More …

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 …