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The malware loader known as PikaBot is being distributed as part of a  malvertising   campaign  targeting users searching for legitimate software like AnyDesk. "PikaBot was previously only distributed via malspam campaigns similarly to QakBot and emerged as one of the preferred payloads for a threat actor known as TA577," Malwarebytes' Jérôme Segura  said . The malware family, which  first   appeared  in early 2023, consists of a loader and a core module that allows it to operate as a backdoor as well as a distributor for other payloads. This  enables  the threat actors to gain unauthorized remote access to compromised systems and transmit commands from a command-and-control (C2) server, ranging from arbitrary shellcode, DLLs, or executable files, to other malicious tools such as Cobalt Strike. One of the threat actors leveraging PikaBot in its attacks is  TA577 , a prolific cybercrime threat actor that has, in the past, delivered ...

The Black Basta ransomware-as-a-service (RaaS) operation has targeted more than 500 private industry and critical infrastructure entities in North America, Europe, and Australia since its emergence in April 2022. In a joint advisory published by the Cybersecurity and Infrastructure Security Agency (CISA), the Federal Bureau of Investigation (FBI), the Department of Health and Human Services (HHS), and the Multi-State Information Sharing and Analysis Center (MS-ISAC), the agencies said the threat actors encrypted and stole data from at least 12 out of 16 critical infrastructure sectors. "Black Basta affiliates use common initial access techniques — such as phishing and exploiting known vulnerabilities — and then employ a double-extortion model, both encrypting systems and exfiltrating data," the bulletin  read . Unlike other ransomware groups, the ransom notes dropped at the end of the attack do not contain an initial ransom demand or payment instructions. Rather, the note...

Some weeks in security feel loud. This one feels sneaky. Less big dramatic fireworks, more of that slow creeping sense that too many people are getting way too comfortable abusing things they probably shouldn’t even be touching. There’s a little bit of everything in this one, too. Weird delivery tricks, old problems coming back in slightly worse forms, shady infrastructure doing shady infrastructure things, and the usual reminder that if criminals find a workflow annoying, they’ll just make a new one by Friday. Efficient little parasites. You almost have to respect the commitment. A few of these updates have that nasty “yeah, that tracks” energy. Stuff that sounds niche right up until you picture it landing in a real environment with real users clicking real nonsense because they’re busy and tired and just trying to get through the day. Then it stops being abstract pretty fast. So yeah, this week’s ThreatsDay Bulletin is a solid scroll-befor...