During the past 4 months Microsoft Onenote file format has been (ab)used as Malware carrier by different criminal groups. While the main infection vector is still on eMail side - so nothing really relevant to write on - the used techniques, the templates and the implemented code to inoculate Malware changed a lot. So it…
Key Findings:
HeadCrab: A Novel State-of-the-Art Redis Malware in a Global Campaign
Aqua Nautilus researchers discovered a new elusive and severe threat that has been infiltrating and residing on servers worldwide since early September 2021. Known as HeadCrab, this advanced threat actor utilizes a state-of-the-art, custom-made malware that is undetectable by agentless and traditional anti-virus solutions to compromise a large number of Redis servers. The HeadCrab botnet has taken control of at least 1,200 servers.
This blog will delve into the details of the HeadCrab attack, examining its methods of operation, techniques used to evade detection, and steps organizations can take to safeguard their systems.
A newly uncovered technique to abuse Google’s ad-words powerful advertisement platform is spreading rogue promoted search results in mass. Pointing to allegedly credible advertisement sites that are fully controlled by threat actors, those are used to masquerade and redirect ad-clickers to malicious phishing pages gaining the powerful credibility and targeting capabilities of Google’s search results. Adding customized malware payloads, threat actors are raising the bar for successful malware deployments on Personal PCs with ad words like Grammarly, Malwarebytes, and Afterburner as well as with Visual Studio, Zoom, Slack, and even Dashlane to target organizations.
The ASEC analysis team recently discovered that a Linux malware developed with Shc has been installing a CoinMiner. It is presumed that after successful authentication through a dictionary attack on inadequately managed Linux SSH servers, various malware were installed on the target system. Among those installed were the Shc downloader, XMRig CoinMiner installed through the former, and DDoS IRC Bot, developed with Perl.