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analyzing-linux-kernel-rootkits

Detect kernel-level rootkits in Linux memory dumps using Volatility3 linux plugins (check_syscall, lsmod, hidden_modules), rkhunter system scanning, and /proc vs /sys discrepancy analysis to identify hooked syscalls, hidden kernel modules, and tampered system structures.

60

Quality

51%

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-linux-kernel-rootkits/SKILL.md
SKILL.md
Quality
Evals
Security

Security

2 findings — 2 medium severity. 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: 0.80). The skill allows supplying a Volatility ISF URL (args --isf-url used in scripts/agent.py run_vol3_plugin) and the included API reference explicitly points to downloading ISF symbol tables from public GitHub, which are third‑party, user‑contributed files that Volatility will ingest and that can materially alter analysis results.

Report incorrect finding
Medium

W013: Attempt to modify system services in skill instructions

What this means

The skill prompts the agent to compromise the security or integrity of the user’s machine by modifying system-level services or configurations, such as obtaining elevated privileges, altering startup scripts, or changing system-wide settings.

Why it was flagged

Attempt to modify system services in skill instructions detected (high risk: 1.00). The skill explicitly instructs actions that require and perform privileged, state-changing operations—e.g., acquiring memory by loading the LiME kernel module and running root-level scans (example shows sudo), which modify kernel/system state and require elevated privileges.

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.