Compressed files and archives are the preferred file formats for distribution by way
of email
or the Internet. Unless your antivirus application is specially equipped to handle
these files,
viruses, and other security risks may be “smuggled” into your network inside these
files.
The ServerProtect scan engine scans
inside archives and compressed files, and can even detect viruses in compressed files
and
archives composed of other compressed files - up to twenty (20) compression layers
deep, if so
configured. If ServerProtect scans a file
more than 20 layers deep, layers 21+ are “skipped” but are recorded in the system
logs.
The Trend Micro scan engine can detect malware in
archives created by popular compression and archival algorithms, such as
*.zip, *.arj, *.lzh. A
comprehensive list is available in the How ServerProtect Finds Viruses topic in the online help.