mirror of
https://github.com/elastic/protections-artifacts
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protectionsmachine
73 lines
2.3 KiB
TOML
73 lines
2.3 KiB
TOML
[rule]
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description = """
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This rule detects the execution of gsocket binaries or scripts that may be used to establish a reverse shell or
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exfiltrate data from a compromised system. Gsocket is a tool that can be used to create a reverse shell, transfer files,
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or mount remote directories over a network connection. This activity may indicate an attacker is attempting to establish
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persistence or move laterally within a network.
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"""
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id = "9015e5ec-a68d-4539-923d-a96d2c6227d3"
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license = "Elastic License v2"
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name = "Potential Gsocket Activity"
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os_list = ["linux"]
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reference = ["https://github.com/hackerschoice/gsocket", "https://www.gsocket.io/", "https://www.thc.org/ssh-it/"]
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version = "1.0.8"
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query = '''
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process where event.type == "start" and event.action == "exec" and
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process.name in ("bash", "dash", "sh", "tcsh", "csh", "zsh", "ksh", "fish") and
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process.command_line like~ (
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"*GS_ARGS=*", "*gs-netcat*", "*gs-sftp*", "*gs-mount*", "*gs-full-pipe*", "*GS_NOINST=*", "*GSOCKET_ARGS=*",
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"*GS_DSTDIR=*", "*GS_URL_BASE=*", "*GS_OSARCH=*", "*GS_HIDDEN_NAME=*", "*GS_HOST=*",
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"* GS_PORT=*", "*GS_TG_TOKEN=*", "*GS_TG_CHATID=*", "*GS_DISCORD_KEY=*", "*GS_WEBHOOK_KEY=*"
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) and not (
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process.parent.name in ("make", "ninja", "qmake", "gmake") or
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process.parent.executable like ("/tmp/newroot/nix/store/*/generator/generator", "/usr/share/cursor/cursor") or
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process.command_line like "*/bin/qmake*"
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)
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'''
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min_endpoint_version = "7.15.0"
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optional_actions = []
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[[actions]]
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action = "kill_process"
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field = "process.entity_id"
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state = 0
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[[actions]]
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action = "kill_process"
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field = "process.parent.entity_id"
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state = 0
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[[threat]]
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framework = "MITRE ATT&CK"
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[[threat.technique]]
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id = "T1059"
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name = "Command and Scripting Interpreter"
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reference = "https://attack.mitre.org/techniques/T1059/"
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[[threat.technique.subtechnique]]
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id = "T1059.004"
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name = "Unix Shell"
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reference = "https://attack.mitre.org/techniques/T1059/004/"
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[threat.tactic]
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id = "TA0002"
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name = "Execution"
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reference = "https://attack.mitre.org/tactics/TA0002/"
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[[threat]]
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framework = "MITRE ATT&CK"
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[[threat.technique]]
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id = "T1071"
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name = "Application Layer Protocol"
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reference = "https://attack.mitre.org/techniques/T1071/"
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[threat.tactic]
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id = "TA0011"
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name = "Command and Control"
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reference = "https://attack.mitre.org/tactics/TA0011/"
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[internal]
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min_endpoint_version = "7.15.0"
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