Detection rules › Sigma
DNS Exfiltration and Tunneling Tools Execution
Well-known DNS Exfiltration tools execution
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Command & Control | T1071.004 Application Layer Protocol: DNS, T1132.001 Data Encoding: Standard Encoding |
| Exfiltration | T1048.001 Exfiltration Over Alternative Protocol: Exfiltration Over Symmetric Encrypted Non-C2 Protocol |
Event coverage
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 1 | Process creation |
| Security-Auditing | Event ID 4688 | A new process has been created. |
Rule body yaml
title: DNS Exfiltration and Tunneling Tools Execution
id: 98a96a5a-64a0-4c42-92c5-489da3866cb0
status: test
description: Well-known DNS Exfiltration tools execution
references:
- https://github.com/iagox86/dnscat2
- https://github.com/yarrick/iodine
author: Daniil Yugoslavskiy, oscd.community
date: 2019-10-24
modified: 2021-11-27
tags:
- attack.exfiltration
- attack.t1048.001
- attack.command-and-control
- attack.t1071.004
- attack.t1132.001
logsource:
category: process_creation
product: windows
detection:
selection:
- Image|endswith: '\iodine.exe'
- Image|contains: '\dnscat2'
condition: selection
falsepositives:
- Unlikely
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
- Image|endswith: '\iodine.exe'
- Image|contains: '\dnscat2'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.