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Security
General Security Discussions
Scan on File Open vs Scan on File Execution
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<blockquote data-quote="SeriousHoax" data-source="post: 867728" data-attributes="member: 78686"><p>From what I understand,</p><p>On open: You open a folder containing some files and those files would be scanned. Similar to what Windows Defender and most top AVs do. On open is also known as on access. When you open a folder Windows Explorer accesses those file for reading and if any contains malware then it would be detected. Most AVs usually don't scan every files, they have some selected extensions they scan on access.</p><p></p><p>On creation: Files that are already on your system won't be scanned unless executed. If you open a folder containing few exes then those won't be scanned. Only newly created files will be scanned. For example when you extract a zip file containing other files, those extracted files are newly created so those will be scanned by the AV.</p><p></p><p>On execution: We all know about it.</p></blockquote><p></p>
[QUOTE="SeriousHoax, post: 867728, member: 78686"] From what I understand, On open: You open a folder containing some files and those files would be scanned. Similar to what Windows Defender and most top AVs do. On open is also known as on access. When you open a folder Windows Explorer accesses those file for reading and if any contains malware then it would be detected. Most AVs usually don't scan every files, they have some selected extensions they scan on access. On creation: Files that are already on your system won't be scanned unless executed. If you open a folder containing few exes then those won't be scanned. Only newly created files will be scanned. For example when you extract a zip file containing other files, those extracted files are newly created so those will be scanned by the AV. On execution: We all know about it. [/QUOTE]
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