discovery_virtual_machine_fingerprinting_grep.toml

[metadata]
creation_date = "2021/09/29"
integration = ["endpoint"]
maturity = "production"
updated_date = "2024/05/21"

[rule]
author = ["Elastic"]
description = """
An adversary may attempt to get detailed information about the operating system and hardware. This rule identifies
common locations used to discover virtual machine hardware by a non-root user. This technique has been used by the Pupy
RAT and other malware.
"""
false_positives = [
    """
    Certain tools or automated software may enumerate hardware information. These tools can be exempted via user name or
    process arguments to eliminate potential noise.
    """,
]
from = "now-9m"
index = ["auditbeat-*", "logs-endpoint.events.*"]
language = "eql"
license = "Elastic License v2"
name = "Virtual Machine Fingerprinting via Grep"
references = ["https://objective-see.com/blog/blog_0x4F.html"]
risk_score = 47
rule_id = "c85eb82c-d2c8-485c-a36f-534f914b7663"
setup = """## Setup

If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2,
events will not define `event.ingested` and default fallback for EQL rules was not added until version 8.2.
Hence for this rule to work effectively, users will need to add a custom ingest pipeline to populate
`event.ingested` to @timestamp.
For more details on adding a custom ingest pipeline refer - https://www.elastic.co/guide/en/fleet/current/data-streams-pipeline-tutorial.html
"""
severity = "medium"
tags = [
    "Domain: Endpoint",
    "OS: macOS",
    "OS: Linux",
    "Use Case: Threat Detection",
    "Tactic: Discovery",
    "Data Source: Elastic Defend",
]
timestamp_override = "event.ingested"
type = "eql"

query = '''
process where event.type == "start" and
 process.name in ("grep", "egrep") and user.id != "0" and
 process.args : ("parallels*", "vmware*", "virtualbox*") and process.args : "Manufacturer*" and
 not process.parent.executable in ("/Applications/Docker.app/Contents/MacOS/Docker", "/usr/libexec/kcare/virt-what")
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1082"
name = "System Information Discovery"
reference = "https://attack.mitre.org/techniques/T1082/"


[rule.threat.tactic]
id = "TA0007"
name = "Discovery"
reference = "https://attack.mitre.org/tactics/TA0007/"