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sigmaLinuxSecAnlTools.yml
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action: global
title: Executing security analysis tools on UNIX/Linux
id: d8b7d21d-b1b5-41ce-8b8c-b6c9336b6be2
status: experimental
author: kaixeb
date: 2022/10/17
references:
- https://habr.com/ru/company/pt/blog/513032/
- https://habr.com/ru/company/pt/blog/515532/
- https://fourcore.io/blogs/sigma-rules-open-source-threat-hunting-approach
- https://github.com/SigmaHQ/sigma-specification
logsource:
product: linux
service: auditd
---
description: Detects usage of popular network scanning tools
detection:
selection1:
type: 'SYSCALL'
exe|contains:
- 'hping3'
- 'fping'
- 'dnsenum'
- 'arping'
- 'netdiscover'
- 'nbtscan'
- 'nmblookup'
- 'onesixtyone'
- 'snmpwalk'
- 'snmpcheck'
- 'sslscan'
selection2:
type: 'EXECVE'
keywords2:
- 'dnsrecon'
- 'fierce'
- 'smbmap'
- 'sslyze'
- 'svmap'
- 'svwar'
- 'svcrack'
- 'svreport'
- 'svcrash'
selection3:
type: 'PROCTITLE'
proctitle|contains:
- '6870696E6733'
- '6670696E67'
- '646E737265636F6E'
- '646E73656E756D'
- '666965726365'
- '617270696E67'
- '6E6574646973636F766572'
- '6E62747363616E'
- '6E6D626C6F6F6B7570'
- '6F6E6573697874796F6E65'
- '736E6D7077616C6B'
- '736E6D70636865636B'
- '736D626D6170'
- '73736C7363616E'
- '73736C797A65'
- '73766D6170'
- '7376776172'
- '7376637261636B'
- '73767265706F7274'
- '73766372617368'
condition: selection1 or selection2 and keywords2 or selection3
falsepositives:
- Legitimate usage of the tool by system administrator or cybersecurity specialist (e.g. to test the firewall)
- Utility with similar name but not related to the cybersecurity
level: medium
tags:
- attack.t1423
- attack.t1046
- attack.t1135
- attack.t1016
---
description: Detects usage of popular web server directory bruteforcing tools and web scanners
detection:
selection1:
type: 'SYSCALL'
exe|contains:
- 'gobuster'
- 'ffuf'
- 'nikto'
- 'whatweb'
- 'dirb'
- 'feroxbuster'
selection2:
type: 'EXECVE'
keywords2:
- 'dirsearch'
- 'wfuzz'
- 'finalrecon'
- 'bfac'
selection3:
type: 'PROCTITLE'
proctitle|contains:
- '646972736561726368'
- '676F627573746572'
- '7766757A7A'
- '66667566'
- '6E696B746F'
- '77686174776562'
- '64697262'
- '6665726F78627573746572'
- '66696E616C7265636F6E'
- '62666163'
condition: selection1 or selection2 and keywords2 or selection3
falsepositives:
- Legitimate usage of the tool by penetration testing specialist
- Utility with similar name but not related to the cybersecurity
level: medium
tags:
- attack.t1083
- attack.t1518
---
description: Detects usage of network traffic sniffing tools
detection:
selection1:
type: 'SYSCALL'
exe|contains:
- 'ssldump'
- 'bettercap'
- 'ettercap'
selection3:
type: 'PROCTITLE'
proctitle|contains:
- '73736C64756D70'
- '626574746572636170'
- '6574746572636170'
condition: selection1 or selection3
falsepositives:
- Legitimate usage of the tool by system administrator or network engineer
- Utility with similar name but not related to the cybersecurity
level: medium
tags:
- attack.t1040
---
description: Detects usage of brute force attack tools
detection:
selection1:
type: 'SYSCALL'
exe|contains:
- 'hydra'
- 'ncrack'
- 'medusa'
- 'kerbrute'
- 'cerbero'
selection2:
type: 'EXECVE'
keywords2:
- 'patator'
- 'crackmapexec'
- 'cme'
selection3:
type: 'PROCTITLE'
proctitle|contains:
- '6879647261'
- '6E637261636B'
- '6D6564757361'
- '70617461746F72'
- '637261636B6D617065786563'
- '636D65'
- '6B65726272757465'
- '6365726265726F'
condition: selection1 or selection2 and keywords2 or selection3
falsepositives:
- Legitimate usage of the tool by penetration testing specialist
- Utility with similar name but not related to the cybersecurity
level: medium
tags:
- attack.t1110