Cisco ProtectLink Security

The following file types are considered high-risk:

True File Type

• com
• exe
• dll
• java byte code
• self-extracting compressed files
• midi
• mp3
• mpeg
• msvideo
• quicktime
• voc
• wav

MIME Type

Audio:

• midi
• mp3
• wav

Video:

• mpeg
• msvideo
• quicktime

Extension

• .386 Windows Enhanced Mode Driver or Swap File
• .ACM Audio Compression Manager Driver (Windows) and Windows System File
• .ASP Active Server Page
• .AVB Innocu.an Anti-Virus Virus Infected File
• .BAT Batch Porcessing
• .BIN Binary File
• .CGI Common Gateway Interface
• .CHM Compiled Hypertext Markup Language (HTML) file
• .CLA Java Class File (usually .CLASS but can be shortened)
• .CMD OS/2, WinNT Command File, DOS CP/M Command File, dBase II Program File
• .CNV MS Word Data Conversion File
• .COM Executable File
• .CS* Corel Script
• .DLL Dynamic Link Library
• .DRV Device Driver
• .EXE Executable File
• .GMS Corel Global Macro Storage
• .HLP Windows Help File
• .HTA Hypertext Application (run apps from HTML doc)
• .HTM, and .HTML HyperText Markup Language (HTML)
• .HTT Hypertext Template
• .INF Information or Setup File
• .INI Initialization file (many)
• .JS*, JS or JSE JavaScript Source Code
• .LNK Linker File, Windows Shortcut File
• .MHT* MS MHTML Document (Archived Web Page)
• .MPD Mini Port Driver
• .OCX Object Linking and Embedding (OLE) Control Extension
• .OPO Output Executable File
• .OV* Program Overlay File (.OVL)
• .PHP Hypertext Markup Language (HTML) file with Personal Home Page (PHP) Script
• .PIF Windows Program Information File
• .PL Source Code File (Perl)
• .PRC Resource (text or program) File (3Com PalmPilot)
• .REG Windows Registry File
• .SCR Screen Saver Script
• .SH Shell Script (Unix)
• .SHS Shell Scrip Object File
• .SYS System Device Driver
• .TLB Remote Automation Truelib Files
• .TSP Windows Telephony Service Provider
• .VBS Visual Basic Script
• .VBE Visual Basic Script Encrypted
• .VXD Virtual Device Driver
• .WBS Webexpress Website File
• .WBT WinBatch Script