yutianqaq / cs-get-last-error

An aggressor script for Cobalt Strike to query Windows' GetLastError messages

cs-get-last-error

Obtain error messages from GetLastError codes directly inside the Cobalt Strike client without the help of Google search, net helpmsg, or Microsoft Error Lookup Tool. The error messages are included in the aggressor script, and no interaction with the beacon is required.

The aggressor script is automatically generated and updated from the windows-lasterror-json files.

Example usage

beacon> ls //does-not-exists/c$
[*] Tasked beacon to list files in //does-not-exists/c$
[+] host called home, sent: 38 bytes
[-] could not open //does-not-exists/c$\*: 53

beacon> get-last-error 53
[*] ERROR_BAD_NETPATH

The network path was not found.