Suspicious Package Installed - Linux

 1title: Suspicious Package Installed - Linux
 2id: 700fb7e8-2981-401c-8430-be58e189e741
 3status: test
 4description: Detects installation of suspicious packages using system installation utilities
 5references:
 6    - https://gist.githubusercontent.com/MichaelKoczwara/12faba9c061c12b5814b711166de8c2f/raw/e2068486692897b620c25fde1ea258c8218fe3d3/history.txt
 7author: Nasreddine Bencherchali (Nextron Systems)
 8date: 2023-01-03
 9modified: 2026-01-01
10tags:
11    - attack.defense-evasion
12    - attack.t1553.004
13logsource:
14    product: linux
15    category: process_creation
16detection:
17    selection_tool_apt:
18        Image|endswith:
19            - '/apt'
20            - '/apt-get'
21        CommandLine|contains: 'install'
22    selection_tool_yum:
23        Image|endswith: '/yum'
24        CommandLine|contains:
25            - 'localinstall'
26            - 'install'
27    selection_tool_rpm:
28        Image|endswith: '/rpm'
29        CommandLine|contains: '-i'
30    selection_tool_dpkg:
31        Image|endswith: '/dpkg'
32        CommandLine|contains:
33            - '--install'
34            - '-i'
35    selection_keyword:
36        CommandLine|contains:
37            # Add more suspicious packages
38            - 'nmap'
39            - ' nc'
40            - 'netcat'
41            - 'wireshark'
42            - 'tshark'
43            - 'openconnect'
44            - 'proxychains'
45            - 'socat'
46    condition: 1 of selection_tool_* and selection_keyword
47falsepositives:
48    - Legitimate administration activities
49level: medium