Suspicious Scan Loop Network

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

Sigma rule (View on GitHub)

 1title: Suspicious Scan Loop Network
 2id: f8ad2e2c-40b6-4117-84d7-20b89896ab23
 3status: test
 4description: 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
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1018/T1018.md
 7    - https://ss64.com/nt/for.html
 8    - https://ss64.com/ps/foreach-object.html
 9author: frack113
10date: 2022/03/12
11tags:
12    - attack.execution
13    - attack.t1059
14    - attack.discovery
15    - attack.t1018
16logsource:
17    category: process_creation
18    product: windows
19detection:
20    selection_loop:
21        CommandLine|contains:
22            - 'for '
23            - 'foreach '
24    selection_tools:
25        CommandLine|contains:
26            - 'nslookup'
27            - 'ping'
28    condition: all of selection_*
29falsepositives:
30    - Legitimate script
31level: medium

References

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