Samirbous
81 lines
2.6 KiB
TOML
81 lines
2.6 KiB
TOML
[metadata]
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creation_date = "2024/11/05"
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integration = ["endpoint", "windows", "system", "m365_defender", "sentinel_one_cloud_funnel"]
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maturity = "production"
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updated_date = "2024/11/05"
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min_stack_version = "8.14.0"
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min_stack_comments = "Breaking change at 8.14.0 for the Windows Integration."
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[rule]
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author = ["Elastic"]
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description = """
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Identifies attempts to open a remote desktop file from suspicious paths. Adversaries may abuse RDP files for initial access.
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"""
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from = "now-9m"
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index = [
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"winlogbeat-*",
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"logs-endpoint.events.process-*",
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"logs-windows.forwarded*",
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"logs-windows.sysmon_operational-*",
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"endgame-*",
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"logs-system.security*",
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"logs-m365_defender.event-*",
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"logs-sentinel_one_cloud_funnel.*",
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]
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language = "eql"
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license = "Elastic License v2"
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name = "Remote Desktop File Opened from Suspicious Path"
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references = [
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"https://www.microsoft.com/en-us/security/blog/2024/10/29/midnight-blizzard-conducts-large-scale-spear-phishing-campaign-using-rdp-files/",
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"https://www.blackhillsinfosec.com/rogue-rdp-revisiting-initial-access-methods/",
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"https://shorsec.io/blog/malrdp-implementing-rouge-rdp-manually/",
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]
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risk_score = 47
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rule_id = "f401a0e3-5eeb-4591-969a-f435488e7d12"
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severity = "medium"
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tags = [
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"Domain: Endpoint",
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"OS: Windows",
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"Use Case: Threat Detection",
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"Tactic: Initial Access",
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"Tactic: Command and Control",
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"Data Source: Elastic Endgame",
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"Data Source: Elastic Defend",
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"Data Source: System",
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"Data Source: Microsoft Defender for Endpoint",
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"Data Source: Sysmon",
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"Data Source: SentinelOne",
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]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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process where host.os.type == "windows" and event.type == "start" and
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process.name : "mstsc.exe" and
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process.args : ("?:\\Users\\*\\Downloads\\*.rdp",
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"?:\\Users\\*\\AppData\\Local\\Temp\\Temp?_*.rdp",
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"?:\\Users\\*\\AppData\\Local\\Temp\\7z*.rdp",
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"?:\\Users\\*\\AppData\\Local\\Temp\\Rar$*\\*.rdp",
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"?:\\Users\\*\\AppData\\Local\\Temp\\BNZ.*.rdp",
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"C:\\Users\\*\\AppData\\Local\\Microsoft\\Windows\\INetCache\\Content.Outlook\\*.rdp")
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1566"
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name = "Phishing"
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reference = "https://attack.mitre.org/techniques/T1566/"
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[[rule.threat.technique.subtechnique]]
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id = "T1566.001"
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name = "Spearphishing Attachment"
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reference = "https://attack.mitre.org/techniques/T1566/001/"
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[rule.threat.tactic]
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id = "TA0001"
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name = "Initial Access"
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reference = "https://attack.mitre.org/tactics/TA0001/"
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