Individual skill
detecting-email-forwarding-rules-attack
Detect malicious inbox/mail-flow forwarding rules that adversaries create to maintain persistent access to email communications for intelligence collection and business email compromise. Use when hunting for suspicious auto-forwarding, hidden mailbox rules, or T1114-style email collection persistence after a compromised account or BEC incident.
skills/detecting-email-forwarding-rules-attack/SKILL.md
Source commit 54a798831d2266a3ca61ce68a7acb80b81160d57
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- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
- Skill scan complete
- Yes
- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
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Repository context
- Repository stars (not skill ratings)
- 35,925
- Repository last updated
- Aug 31, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- ai-agents Repository topic
- claude-code Repository topic
- cybersecurity Repository topic
- incident-response Repository topic
- mitre-attack Repository topic
- penetration-testing Repository topic
- red-team Repository topic
- security Repository topic
- cloud-security Repository topic
- malware-analysis Repository topic
- threat-hunting Declared skill tag
- mitre-attack Declared skill tag
- email-forwarding Declared skill tag
- persistence Declared skill tag
- bec Declared skill tag
- t1114 Declared skill tag
- proactive-detection Declared skill tag
- security Derived category
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LICENSEasset · 11,255 bytesSKILL.mdcore · 3,669 bytesassets/template.mddoc · 2,683 bytesreferences/api-reference.mddoc · 1,867 bytesreferences/standards.mddoc · 1,618 bytesreferences/workflows.mddoc · 2,929 bytesscripts/agent.pyruns · 6,012 bytesscripts/process.pyruns · 3,647 bytes
Read excerpt
# Detecting Email Forwarding Rules Attack
## When to Use
- When proactively hunting for indicators of detecting email forwarding rules attack in the environment
- After threat intelligence indicates active campaigns using these techniques
- During incident response to scope compromise related to these techniques
- When EDR or SIEM alerts trigger on related indicators
- During periodic security assessments and purple team exercises
## Prerequisites
- EDR platform with process and network telemetry (CrowdStrike, MDE, SentinelOne)
- SIEM with relevant log data ingested (Splunk, Elastic, Sentinel)