Suspicious Scan Loop Network

Severity: medium
Author: frack113
Source: upstream

Adversaries may attempt to get a listing of other systems by IP address, hostname, or other logical identifier on a network that may be used for Lateral Movement from the current system

MITRE ATT&CK coverage

Tactic	Techniques
Execution	`T1059` Command and Scripting Interpreter
Discovery	`T1018` Remote System Discovery

Event coverage

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

Stages and Predicates

Stage 1: `all of selection_loop`

or:
CommandLine|contains: 'for '
CommandLine|contains: 'foreach '

Stage 2: `all of selection_tools`

or:
CommandLine|contains: nslookup
CommandLine|contains: ping

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	`for` corpus 2 (sigma 2) `foreach` `nslookup` corpus 2 (sigma 2) `ping` corpus 4 (sigma 4)