Abusing Print Executable

Severity: medium
Author: Furkan CALISKAN, @caliskanfurkan_, @oscd_initiative
Source: upstream

Attackers can use print.exe for remote file copy

MITRE ATT&CK coverage

Tactic	Techniques
Defense Evasion	`T1218` System Binary Proxy Execution

Event coverage

Provider	Event ID	Title
Sysmon	1	Process creation
Security-Auditing	4688	A new process has been created.

Stages and Predicates

Stage 1: `selection`

CommandLine|contains: .exe
CommandLine|contains: '/D'
CommandLine|startswith: print
Image|endswith: '\print.exe'

Stage 2: `not filter_print`

CommandLine|contains: print.exe

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

Field	Kind	Values
`CommandLine`	match	`.exe` corpus 4 (sigma 4) `/D` `print.exe`
`CommandLine`	starts_with	`print`
`Image`	ends_with	`\print.exe`