Justin Ibarra
c1a0438f45
* replaced/removed all revoked/deprecated techniques * tests will fail on revoked (changed) techniques * tests will fail on deprecated techniques * tests will fail when techniques are mapped to an invalid tactic
55 lines
2.2 KiB
TOML
55 lines
2.2 KiB
TOML
[metadata]
|
|
creation_date = "2020/02/18"
|
|
maturity = "production"
|
|
updated_date = "2020/12/17"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies suspicious child processes of frequently targeted Microsoft Office applications (Word, PowerPoint, Excel).
|
|
These child processes are often launched during exploitation of Office applications or from documents with malicious
|
|
macros.
|
|
"""
|
|
from = "now-9m"
|
|
index = ["winlogbeat-*", "logs-endpoint.events.*"]
|
|
language = "eql"
|
|
license = "Elastic License"
|
|
name = "Suspicious MS Office Child Process"
|
|
risk_score = 47
|
|
rule_id = "a624863f-a70d-417f-a7d2-7a404638d47f"
|
|
severity = "medium"
|
|
tags = ["Elastic", "Host", "Windows", "Threat Detection", "Execution"]
|
|
type = "eql"
|
|
|
|
query = '''
|
|
process where event.type in ("start", "process_started") and
|
|
process.parent.name : ("eqnedt32.exe", "excel.exe", "fltldr.exe", "msaccess.exe", "mspub.exe", "powerpnt.exe", "winword.exe") and
|
|
process.name : ("Microsoft.Workflow.Compiler.exe", "arp.exe", "atbroker.exe", "bginfo.exe", "bitsadmin.exe", "cdb.exe", "certutil.exe",
|
|
"cmd.exe", "cmstp.exe", "cscript.exe", "csi.exe", "dnx.exe", "dsget.exe", "dsquery.exe", "forfiles.exe", "fsi.exe",
|
|
"ftp.exe", "gpresult.exe", "hostname.exe", "ieexec.exe", "iexpress.exe", "installutil.exe", "ipconfig.exe", "mshta.exe",
|
|
"msxsl.exe", "nbtstat.exe", "net.exe", "net1.exe", "netsh.exe", "netstat.exe", "nltest.exe", "odbcconf.exe", "ping.exe",
|
|
"powershell.exe", "pwsh.exe", "qprocess.exe", "quser.exe", "qwinsta.exe", "rcsi.exe", "reg.exe", "regasm.exe", "regsvcs.exe",
|
|
"regsvr32.exe", "sc.exe", "schtasks.exe", "systeminfo.exe", "tasklist.exe", "tracert.exe", "whoami.exe",
|
|
"wmic.exe", "wscript.exe", "xwizard.exe", "explorer.exe", "rundll32.exe", "hh.exe")
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1566"
|
|
name = "Phishing"
|
|
reference = "https://attack.mitre.org/techniques/T1566/"
|
|
[[rule.threat.technique.subtechnique]]
|
|
id = "T1566.001"
|
|
name = "Spearphishing Attachment"
|
|
reference = "https://attack.mitre.org/techniques/T1566/001/"
|
|
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0001"
|
|
name = "Initial Access"
|
|
reference = "https://attack.mitre.org/tactics/TA0001/"
|
|
|