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General Security Discussions
Simple Stupid Security vs. free AV
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<blockquote data-quote="Andy Ful" data-source="post: 779105" data-attributes="member: 32260"><p>PowerShell ExecutionPolicy can be bypassed <strong>without elevated privileges and without the user interaction.</strong></p><p></p><ol> <li data-xf-list-type="ol">The .vbs script can first change the MS Office settings to allow macros without the prompt, and next download/open the weaponized MS Office document from the remote location.</li> <li data-xf-list-type="ol">The .vbs script can download the malicious PowerShell script to disk and run it by the command: <span style="color: rgb(0, 168, 133)"><strong>PowerShell -ExecutionPolicy Bypass -File path2file.ps1</strong></span></li> <li data-xf-list-type="ol">The .vbs script can download the malicious PowerShell script to memory and run it from memory, bypassing execution policy.</li> </ol><p>No interaction from the user is required, except running the .vbs script.</p><p>The same can be done by running PowerShell scripts directly via shortcuts.</p><p>The average user can be easily fooled, because both .vbs scripts and shortcuts, can be prepared with icons from the photos, media files, etc.</p></blockquote><p></p>
[QUOTE="Andy Ful, post: 779105, member: 32260"] PowerShell ExecutionPolicy can be bypassed [B]without elevated privileges and without the user interaction.[/B] [LIST=1] [*]The .vbs script can first change the MS Office settings to allow macros without the prompt, and next download/open the weaponized MS Office document from the remote location. [*]The .vbs script can download the malicious PowerShell script to disk and run it by the command: [COLOR=rgb(0, 168, 133)][B]PowerShell -ExecutionPolicy Bypass -File path2file.ps1[/B][/COLOR] [*]The .vbs script can download the malicious PowerShell script to memory and run it from memory, bypassing execution policy. [/LIST] No interaction from the user is required, except running the .vbs script. The same can be done by running PowerShell scripts directly via shortcuts. The average user can be easily fooled, because both .vbs scripts and shortcuts, can be prepared with icons from the photos, media files, etc. [/QUOTE]
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