cmdl32.exe

Download a file from the web address specified in the configuration file. The downloaded file will be in %TMP% under the name VPNXXXX.tmp where "X" denotes a random number or letter.

Use Download file from Internet

cmdl32 /vpn /lan %cd%\config

Evidence

Upstream reference

Environment

Local host

Context

user

Native

Download

MITRE

T1105

Detection

Sigma: github.com/SigmaHQ/sigma/blob/62d4fd26b05f4d81973e7c8e80d7c1a0c6a29d0e/rules/windows/process_creation/proc_creation_win_lolbin_cmdl32.yml

IOC: Reports of downloading from suspicious URLs in %TMP%\config.log

IOC: Useragent Microsoft(R) Connection Manager Vpn File Update

Refs

github.com/LOLBAS-Project/LOLBAS/pull/151

twitter.com/ElliotKillick/status/1455897435063074824

elliotonsecurity.com/living-off-the-land-reverse-engineering-methodology-plus-tips-and-tricks-cmdl32-case-study/

lolbas-project.github.io/lolbas/Binaries/cmdl32/