Ceplin Command Identifier

Identifier / Programs / Windows

vsls-agent.exe

LOLBAS Execute 1 Sigma rule name it 1 ATT&CK technique 1 documented command

Opens the identifier with your command. It is read in your browser and sent nowhere.

How vsls-agent.exe is abused

documented by LOLBAS

Execute T1218 System Binary Proxy Execution

--agentextensionpath

Each abuse is LOLBAS's category and the options and words it uses; the full write-up is on LOLBAS's page for vsls-agent.exe.

1 documented command

from LOLBAS, each read by the identifier

Execute T1218 System Binary Proxy Execution User privileges

Load a library payload using the --agentExtensionPath parameter (32-bit)

vsls-agent.exe --agentExtensionPath {PATH_ABSOLUTE:.dll}
Identify

Trips 1 Sigma rule: mediumSuspicious Vsls-Agent Command With AgentExtensionPath Load by bohops

The command the identifier reads trips a Sigma process-creation rule. These commands and their descriptions are from LOLBAS’s entry for vsls-agent.exe, by Jimmy (@bohops), at commit 2056cb766250 of 2026-09-26, under the GPL-3.0 and LOLBAS’s notice, with no warranty. Changed: Markdown is shown formatted. The source is in lolbas-gtfobins-commands.json.gz, and the full entry is on LOLBAS’s page for vsls-agent.exe. The identifier reads it with LOLBAS’s placeholders filled in: a URL as https://example.com/file, a share as \\192.0.2.10\share\file, a path as C:\Data\file and a command as calc.exe.

What detects it

Sigma process creation rules
mediumSuspicious Vsls-Agent Command With AgentExtensionPath Loadbohops
T1218System Binary Proxy Execution

Other programs abused for Execute

acccheckconsole.exe · addinutil.exe · adplus.exe · advpack.dll · agentexecutor.exe · appcert.exe · applauncher.exe · appvlp.exe · at.exe · atbroker.exe · bash.exe · bginfo.exe · bitsadmin.exe · cdb.exe · certoc.exe · change.exe