Compression Types Parent topic

The IM Security scan engine can extract and scan files compressed using any of the most popular compression types (listed below). IM Security can also check for viruses/malware being "smuggled" within nested compressions, for example, an infected file that is zipped, ARJ-compressed, MS-compressed, and zipped again.
The maximum number of recursive scan layers is 20. You can configure this limit from File Transfer Scan → Virus Scan → Target → Scan Restriction Criteria.

Supported Compression Types

  • Archive created by LHA (.lzh)
  • MacBinary (.bin)
  • Archive created by Pkzip (.zip)
  • Microsoft Cabinet (.cab)
  • Archive created by RAR (.rar)
  • Microsoft Compressed/MSCOMP
  • Archive created by Tar (.tar)
  • MIME (.eml; .mht)
  • ARJ Compressed archive (.arj)
  • Teledisk format (.td0)
  • BINHEX (.hqx)
  • Unix BZ2 Bzip compressed file (.bz2)
  • GNU Zip (.gz; .gzip)
  • UUEncode (.u)
  • LZW/Compressed 16bits (.Z)
  • WinAce (.ace)