Server : Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/7.4.20 System : Linux st2.domain.com 3.10.0-1127.10.1.el7.x86_64 #1 SMP Wed Jun 3 14:28:03 UTC 2020 x86_64 User : apache ( 48) PHP Version : 7.4.20 Disable Function : NONE Directory : /usr/share/nmap/nselib/data/psexec/ |
The files in this directory are the data files required for smb-psexec.nse. The .lua files are configurations. Each of these defines a profile for a psexec execution. nmap_service.exe is a program that facilitates the operation of smb-psexec.nse. It is uploaded to the remote host and runs the programs it's directed to run, redirecting their output to a file. This file is then downloaded by the script and displayed to the user. When Nmap released version 5.20, it was discovered that some over-zealous antivirus software tagged this program as spyware[1]. For that reason, when stored on the host machine, it is now encoded by xoring every byte of the file with 0xFF. When uploaded to a target machine, it is decoded in-stream. This prevents programs on the host machine from tagging it as malicious, but does not prevent the target from detecting it (which is arguably a good thing). The encoder.c program reads a program from stdin, encodes it by xoring with 0xFF, and writes it to stdout. [1] http://seclists.org/nmap-dev/2010/q1/198