IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Potential Memory Seeking Activity
editPotential Memory Seeking Activity
editMonitors for the execution of Unix utilities that may be leveraged as memory address seekers. Attackers may leverage built-in utilities to seek specific memory addresses, allowing for potential future manipulation/exploitation.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
- endgame-*
Severity: low
Risk score: 21
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Domain: Endpoint
- OS: Linux
- Use Case: Threat Detection
- Tactic: Discovery
- Rule Type: BBR
- Data Source: Elastic Defend
- Data Source: Elastic Endgame
Version: 3
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editprocess where host.os.type == "linux" and event.type == "start" and event.action in ("exec", "exec_event") and (
(process.name == "tail" and process.args in ("-c", "--bytes")) or
(process.name == "cmp" and process.args == "-i") or
(process.name in ("hexdump", "xxd") and process.args == "-s") or
(process.name == "dd" and process.args : ("skip*", "seek*"))
) and not (
process.parent.args like ("/opt/error_monitor/error_monitor.sh", "printf*") or
process.parent.name in ("acme.sh", "dracut", "leapp") or
process.parent.executable like (
"/bin/cagefs_enter", "/opt/nessus_agent/sbin/nessus-service", "/usr/libexec/platform-python*",
"/usr/libexec/vdsm/vdsmd", "/usr/local/bin/docker-entrypoint.sh", "/usr/lib/module-init-tools/lsinitrd-quick"
) or
process.parent.command_line like "sh*acme.sh*" or
process.args like "/var/tmp/dracut*"
)
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
-
Technique:
- Name: Process Discovery
- ID: T1057
- Reference URL: https://attack.mitre.org/techniques/T1057/