RootkitRevealer is described as 'advanced rootkit detection utility. It runs on Windows NT 4 and higher and its output lists Registry and file system API discrepancies that may indicate the presence of a user-mode or kernel-mode rootkit'. There are six alternatives to RootkitRevealer for Windows, Linux and PortableApps.com. The best alternative is TDSSKiller, which is free. Other great apps like RootkitRevealer are Chkrootkit (Free, Open Source), GMER (Free), Tiger (Free, Open Source) and Trend Micro RootkitBuster (Free).
Chkrootkit is a Linux tool to locally check for signs of a rootkit. It contains: - chkrootkit: shell script that checks system binaries for rootkit modification. - ifpromisc.c: checks if the interface is in promiscuous mode. - chklastlog.c: checks for lastlog deletions.
Scan for hidden files, registry entries, processes, services, drivers, kernel code patches, ports, operating system service hooks, and Master Boot Record (MBR) rootkits. Clean or remove hidden files, registry entries, and services.