Avast does not detect Adware.Mutabaha.18 trojan?

See: https://www.virustotal.com/en/url/194f8001c256388f16fa23de2e0f7a677ee4199dce40f6392285f1095c085426/analysis/1378456207/
and https://www.virustotal.com/en/file/3762e0355ff52b956229a85c5bf50d7a01a671e2713d55d53e5754222e75897a/analysis/1378442169/
Malicious 100/100% http://zulu.zscaler.com/submission/show/c98baf3c2c3845aa58cb39e7cd69fb89-1378456363
Malicious MD5 hash match

polonus

Removal info: http://regrunreanimator.com/newvirus/adware/deskdl-exe.htm (write up author NightWatcher

polonus