malware

New OpcJacker Malware Distributed via Fake VPN Malvertising Malware We discovered a new malware, which we named “OpcJacker” (due to its opcode configuration design and its cryptocurrency hijacking ability), that has been distributed in the wild since the second half of 2022. By: Jaromir Horejsi, Joseph C Chen March 29, 2023 Read time:  ( words) We discovered a new malware, which we named “OpcJacker” (due to its opcode configuration design and its cryptocurrency hijacking ability),…

Once a user enables macros for the malicious document, it will download a ZIP file will from one of seven hardcoded and obfuscated URLs (which will be iterated through until the file is successfully retrieved): hxxps://midcoastsupplies.com[.]au/configNQS/Es2oE4GEH7fbZ/ hxxp://mtp.evotek[.]vn/wp-content/L/ hxxp://www.189dom[.]com/xue80/C0aJr5tfI5Pvi8m/ hxxps://esentai-gourmet[.]kz/404/EDt0f/ hxxp://139.219.4[.]166/wp-includes/XXrRaJtiutdHn7N13/ hxxps://www.snaptikt[.]com/wp-includes/aM4Cz6wp2K4sfQ/ hxxps://diasgallery[.]com:443/about/R/  The macro will then check if the response is 200 (indicating a success retrieval of the file). If so, it will then check if that file is either a PE File or a…