FLAW In Protection: VBS malware and deepscreen

[TrueIndian]

Dave they could use dyna rules and stuff they like they do for other files.They should be adding dyna rules for these type of VBS malware.First all they need to have deepscreen working on vbs files.

[DavidR]

Dave they could use dyna rules and stuff they like they do for other files.

It doesn't really matter what they could use - Personally I'm against creating rules when there is meant to be a script scanning function built in to avast.

Creating a rule would also require an underlying routine to cater for .vbs instead of/as well as .exe's in deepscreen.

[TrueIndian]

Dave I think avast reputation service already has enough no of files in whitelist.Regardless not having rules/trigger for deepscreen for a major threat gate is a flaw.

Script scanning function?? Those are based on the AV database and these are polymorphic viruses and this wouldnt cut it because these change everday like rootkits.This makes some sense I guess.

And from previous experiences avast is not the quickest or smartest to pick the newer varients quickly either instead we have some proactive analysis system.

[DavidR]

I have not mentioned reputation services or whitelisting of files in any of my replies.

I'm clearly stating the the supposed script scanning of avast should be scanning these scripts in the same way that they did when there was a Script Shield. This scanned scripts on both the web pages and scripts run locally.

Deepscreen to date hasn't been the beast it is meant to be, perhaps we will see more of in beta2. As I have mentioned those that have set Hardened Mode to Aggressive are essentially bypassing deepscreen. So any Rule if it were to have rules wouldn't be effective if the Hardened Mode were set to Aggressive.

[TrueIndian]

Dave neither hardened mode nor deepscreen blocks targets vbs extension files which they should be doing now because if this usb malware.I have done some deep testing on this before making this topic.

Nothing to argue on deepscreen improvements in beta2.I have full faith in the developers that they are surely making deepscreen worthy.

[TrueIndian]

Also its not just vbs format.There are many other formats like *.js that are not targeted by deepscreen.

I have been testing this with different file format and so far .vbs and .js are not targeted.