CtrlK
BlogDocsLog inGet started
Tessl Logo

analyzing-apt-group-with-mitre-navigator

Analyze advanced persistent threat (APT) group techniques using MITRE ATT&CK Navigator to create layered heatmaps of adversary TTPs for detection gap analysis and threat-informed defense.

72

Quality

66%

Does it follow best practices?

Impact

Pending

No eval scenarios have been run

SecuritybySnyk

Advisory

Suggest reviewing before use

Optimize this skill with Tessl

npx tessl skill review --optimize ./skills/analyzing-apt-group-with-mitre-navigator/SKILL.md
SKILL.md
Quality
Evals
Security

Security

1 medium severity finding. This skill can be installed but you should review these findings before use.

Medium

W011: Third-party content exposure detected (indirect prompt injection risk)

What this means

The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.

Why it was flagged

Third-party content exposure detected (high risk: 0.70). This skill programmatically fetches and parses ATT&CK STIX data from public third-party endpoints (e.g., ATTACK_ENTERPRISE_URL = "https://raw.githubusercontent.com/mitre/cti/master/enterprise-attack/enterprise-attack.json" in scripts/agent.py and the curl example in references/api-reference.md), and uses that data to build Navigator layers and drive detection-gap/analysis decisions, so externally hosted content is read and can materially influence agent behavior.

Report incorrect finding
Repository
mukul975/Anthropic-Cybersecurity-Skills
Audited
Security analysis
Snyk

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.