Query: rule covering Detects execution of "findstr" to search for common names of security tools. Attackers often pipe the results of recon c
Matching passage: Sigma rule: Detects execution of "findstr" to search for common names of security tools. Attackers often pipe the results of recon c. Logsource: windows / process_creation. Rule: title: Security Tools Keyword Lookup Via Findstr.EXE id: 4fe074b4-b833-4081-8f24-7dcfeca72b42 related: - id: fe63010f-8823-4864-a96b-a7b4a0f7b929 type: derived status: test description: 'Detects execution of "findstr" to search for common names of security tools. Attackers often pipe the results of recon commands such as "tasklist" or "whoami" to "findstr" in order to filter out the results. This detection focuses on the keywords that the attacker might use as a filter. ' references: - https://github.com/redcanaryco/atomic-red-team/blob/987e3ca988ae3cff4b9f6e388c139c05bf44bbb8/atomics/T1518.001/T1518.001.md#atomic-test-1---security-software-discovery - https://www.microsoft.com/en-us/security/blog/2023/10/18/multiple-north-korean-threat-actors-exploiting-the-teamcity-cve-2023-42793-vulnerability/ - https://www.hhs.gov/sites/default/files/manage-engine-vulnerability-sector-alert-tlpclear.pdf author: Nasreddine Bencherchali (Nextron Systems), frack113 date: 2023-10-20 modified: 2023-11-14 tags: - attack.discovery - attack.t1518.001 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: - \find.exe - \findstr.exe - OriginalFileName: - FIND.EXE - FINDSTR.EXE selection_cli: CommandLine|endswith: - ' avira' - ' avira"' - ' cb' - ' cb"' - ' cylance' - ' cylance"' - ' defender' - ' defender"' - ' kaspersky' - ' kaspersky"' - ' kes' - ' kes"' - ' mc' - ' mc"' - ' sec' - ' sec"' - ' sentinel' - ' sentinel"' - ' symantec' - ' symantec"' - ' virus' - ' virus"' condition: all of selection_* falsepositives: - Unknown level: medium regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_findstr_security_keyword_lookup/info.yml simulation: - type: atomic-red-team name: Security Software Discovery technique: T1518.001 atomic_guid: f92a380f-ced9-491f-b338-95a991418ce2
Near-miss passage: Sigma rule: Transferring files with well-known filenames (sensitive files with credential data) using network shares. Logsource: zeek / smb_files. Rule: title: Transferring Files with Credential Data via Network Shares - Zeek id: 2e69f167-47b5-4ae7-a390-47764529eff5 related: - id: 910ab938-668b-401b-b08c-b596e80fdca5 type: similar status: test description: Transferring files with well-known filenames (sensitive files with credential data) using network shares references: - https://www.slideshare.net/heirhabarov/hunting-for-credentials-dumping-in-windows-environment author: '@neu5ron, Teymur Kheirkhabarov, oscd.community' date: 2020-04-02 modified: 2021-11-27 tags: - attack.credential-access - attack.t1003.002 - attack.t1003.001 - attack.t1003.003 logsource: product: zeek service: smb_files detection: selection: name: - \mimidrv - \lsass - \windows\minidump\ - \hiberfil - \sqldmpr - \sam - \ntds.dit - \security condition: selection falsepositives: - Transferring sensitive files for legitimate administration work by legitimate administrator level: medium