1200KM / sigma-rule
Network Communication Initiated To Portmap.IO Domain — Sigma Rule
Sigma rule 07837ab9-60e1-481f-a74d-c31fb496a94c. Network Communication Initiated To Portmap.IO Domain — Sigma Rule. Detects an executable accessing the portmap.io domain, which could be a sign of forbidden C2 traffic or data exfiltration by malicious actors
Rule metadata and linked tags
Author: Florian Roth (Nextron Systems). Source status: test; severity: medium. Source dates: 2024-05-31 / not supplied.
{
"category": "network_connection",
"product": "windows"
}Pinned original Sigma rule · Detection Rule License 1.1
Source SHA-256: 0ee49ec4ca23763042f31f2b8bad10dbb73dcdf12740b269b9a5c7e2d4881e8d
Detection logic
Original source YAML. Source-tag agreement is not proof of complete semantic coverage. This rule has not been compiled for a SIEM backend or validated against live telemetry here.
title: Network Communication Initiated To Portmap.IO Domain
id: 07837ab9-60e1-481f-a74d-c31fb496a94c
status: test
description: Detects an executable accessing the portmap.io domain, which could be a sign of forbidden C2 traffic or data exfiltration by malicious actors
references:
- https://portmap.io/
- https://github.com/rapid7/metasploit-framework/issues/11337
- https://pro.twitter.com/JaromirHorejsi/status/1795001037746761892/photo/2
author: Florian Roth (Nextron Systems)
date: 2024-05-31
tags:
- attack.t1041
- attack.command-and-control
- attack.t1090.002
- attack.exfiltration
logsource:
category: network_connection
product: windows
detection:
selection:
Initiated: 'true'
DestinationHostname|endswith: '.portmap.io'
condition: selection
falsepositives:
- Legitimate use of portmap.io domains
level: medium
False positives
- Legitimate use of portmap.io domains
Source references
Connected ecosystem references
Exact source-tagged techniques
Telemetry review
Read the original logsource above, then inspect the linked detection workspaces for technique-level sensor context. No per-rule telemetry equivalence is inferred.
Pinned research references. No browser attack runner, live simulation result or validated detector is asserted. Source mappings and validation limits are preserved. ATT&CK / Atomic provenance · Detection provenance.