What it checks
Mismatch between the ps listing and /proc (hidden PIDs).
Why it matters
A classic sign of a rootkit hiding processes.
How to fix
Re-check with trusted tools, inspect modules/connections, then isolate.
InfraGuard runs all 36 checks across your servers at once and grades each host A–F.
Track these versions on your own servers
InfraGuard collects installed software versions from every server and flags the ones with known vulnerabilities. Self-hosted — nothing leaves your network.