Individual skill
investigating-phishing-email-incident
Investigates phishing email incidents from initial user report through header analysis, URL/attachment detonation, impacted user identification, and containment actions using SOC tools like Splunk, Microsoft Defender, and sandbox analysis platforms. Use when a reported phishing email requires full incident investigation to determine scope and impact.
skills/investigating-phishing-email-incident/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
- No
- Observed behavior
- Network or broad shell
- Last checked
- Nov 9, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
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Repository context
- Repository stars (not skill ratings)
- 35,926
- 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
- soc Declared skill tag
- phishing Declared skill tag
- incident-response Declared skill tag
- email-security Declared skill tag
- splunk Declared skill tag
- defender Declared skill tag
- sandbox Declared skill tag
- security Derived category
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LICENSEasset · 11,255 bytesSKILL.mdcore · 11,484 bytesSKILL.mdcore · 11,484 bytesSKILL.mdcore · 11,484 bytesSKILL.mdcore · 11,484 bytesSKILL.mdcore · 11,484 bytesSKILL.mdcore · 11,484 bytesSKILL.mdcore · 11,484 bytesreferences/api-reference.mddoc · 2,514 bytesscripts/agent.pyruns · 7,723 bytes
Read excerpt
# Investigating Phishing Email Incident
## When to Use
Use this skill when:
- A user reports a suspicious email via the phishing report button or helpdesk ticket
- Email security gateway flags a message that bypassed initial filters
- Automated detection identifies credential harvesting URLs or malicious attachments
- A phishing campaign targeting the organization requires scope assessment
**Do not use** for spam or marketing emails without malicious intent — route those to email administration for filter tuning.
## Prerequisites
- Access to email gateway logs (Proofpoint, Mimecast, or Microsoft Defender for Office 365)