Again Virus / Trojan warnings

[crowley]

Thanx to jotti.org:
Scanned File: UniExtract.exe
Result: 2/20 (10.0%)

Code:

A-Squared               Found nothing
AntiVir                 Found nothing
ArcaVir                 Found Worm.Sohanad.Aw
Avast                   Found nothing
AVG Antivirus           Found nothing
BitDefender             Found nothing
ClamAV                  Found nothing
CPsecure                Found nothing
Dr.Web                  Found nothing
F-Prot Antivirus        Found nothing
F-Secure Anti-Virus     Found nothing
Fortinet                Found nothing
Kaspersky Anti-Virus    Found nothing
NOD32                   Found nothing
Norman Virus Control    Found W32/Zlob.gen91
Panda Antivirus         Found nothing
Rising Antivirus        Found nothing
Sophos Antivirus        Found nothing
VirusBuster             Found nothing
VBA32                   Found nothing

Additional information
File:             UniExtract.exe
Status:           INFECTED/MALWARE
MD5:              ae756177c51dae47f525ca134eef6ed4
Packers detected: PE_PATCH.UPX
Bit9 reports:     File not found