Just did a custom install of AVG Free Edition (64-bit) without all the extra features such as:
- Email Scanner
- LinkScanner
- ID Protection
Without those listed above it runs with 5 processes and average of 9,000K RAM (according to Task Manager).
Failed to detect these of about 5 samples.
http://www.virustotal.com/file-scan/report.html?id=cc6e3cf178415cee4d5b8118d95e97193fdcb090b26c29cce716421dee9f3f12-1301492399
http://www.virustotal.com/file-scan/report.html?id=ac8c55dc77b0a1692ac8417b084229cdc8a8ee51a9114e0aaca4c7ab58f5d59a-1301487806
http://www.virustotal.com/file-scan/report.html?id=22f5541992a0e54da7a295065c677309111e6e28854984a4b06d804c370a1ce3-1301494758
http://www.virustotal.com/file-scan/report.html?id=c498aefe38828d3353b7b7cdc497c0d0399d0432264c8975ce00343f78d2b793-1301488383