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: Connections to external C2 (Command and Control) servers to fetch secondary payloads [7]. Recommendation
: Various campaigns targeting financial traders have used this RAR exploit to deploy stealers like PicassoStealer [3, 8]. Indicators of Compromise (IoCs)
: Temporary extraction of a .cmd or .bat file into the %TEMP% directory with trailing spaces in the filename to bypass security software [4, 6].
If you encountered this file in a real-world scenario, . Ensure your WinRAR installation is updated to version 6.23 or higher , which specifically addresses this flaw [5, 9].
: WinRAR versions prior to 6.23 failed to properly handle file extensions when a folder and a file within an archive shared the same name [3, 5].
: In the case of 24467.rar , the archive contains a file (e.g., document.pdf ) and a folder with the exact same name ( document.pdf ). Inside that folder is an executable script or malware (e.g., document.pdf .exe ) [2, 6].
appears to be a specific archive file associated with CVE-2023-38831 , a critical vulnerability in WinRAR that was actively exploited in the wild before being patched [1, 3]. Technical Summary
: Connections to external C2 (Command and Control) servers to fetch secondary payloads [7]. Recommendation
: Various campaigns targeting financial traders have used this RAR exploit to deploy stealers like PicassoStealer [3, 8]. Indicators of Compromise (IoCs)
: Temporary extraction of a .cmd or .bat file into the %TEMP% directory with trailing spaces in the filename to bypass security software [4, 6].
If you encountered this file in a real-world scenario, . Ensure your WinRAR installation is updated to version 6.23 or higher , which specifically addresses this flaw [5, 9].
: WinRAR versions prior to 6.23 failed to properly handle file extensions when a folder and a file within an archive shared the same name [3, 5].
: In the case of 24467.rar , the archive contains a file (e.g., document.pdf ) and a folder with the exact same name ( document.pdf ). Inside that folder is an executable script or malware (e.g., document.pdf .exe ) [2, 6].
appears to be a specific archive file associated with CVE-2023-38831 , a critical vulnerability in WinRAR that was actively exploited in the wild before being patched [1, 3]. Technical Summary
