Simple scanner test, as done so many times in the past struggling with rar files.
running smooth for:
-zip
-exe
-rar
-bz2
-tgz
-tar.gz
You will find attached a demo eicar file using LHA compression uploaded through the 7.350 http proxy. The zip extension is only used due to the ubb file extension filter.
P.S. If I switch from Dual Scan to Single Scan the virus is found...