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<strong>Trend</strong> <strong>Micro</strong> <strong>InterScan</strong> <strong>Gateway</strong> <strong>Security</strong> <strong>Appliance</strong> M-<strong>Series</strong> Administrator’s Guide<br />

Compression Types<br />

The <strong>InterScan</strong> <strong>Gateway</strong> <strong>Security</strong> <strong>Appliance</strong> scan engine can extract and scan files<br />

compressed using any of the most popular compression types (listed below).<br />

<strong>InterScan</strong> <strong>Gateway</strong> <strong>Security</strong> <strong>Appliance</strong> can also check for viruses being "smuggled"<br />

within nested compressions, for example, an infected file that is zipped,<br />

ARJ-compressed, MS-compressed, and zipped again.<br />

F-2<br />

The maximum number of recursive scan layers is 20. You can set this limit from the<br />

Scanning > Target pages of the Web console, for all four protocols.<br />

Support Compression Types include the following:<br />

TABLE F-1. Supported compression types<br />

ZIP<br />

ZIP to EXE<br />

Supported Compression Types<br />

Cabinet (.cab)<br />

ARJ<br />

ARJ to EXE<br />

TAR<br />

GZIP (.gz)<br />

BZIP and BZIP2<br />

ASPAC<br />

UPX<br />

LHA<br />

LHA to EXE

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