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Showing posts with label SophosLabs. Show all posts
Showing posts with label SophosLabs. Show all posts

Tuesday, August 13, 2013

Lure of a FREE PEN DRIVE : MALWARE'd

1.   If you are one of those guys who are regular to attend workshops, seminars, product launches , lectures...you must have got varying opportunities of getting hold of freebies in form of bags,brochures and PEN DRIVES....yess m sure the last one is a pure lure and most of the times everi one of us falls for it...be it a small capacity or a large capacity...the hand does not think twice before picking it up....but does any one of us realise that it may be these pen drives who become the first source of uploading some malware or a virus in your PC or laptop...the moment it is plugged in .....the machine is compromised.....unless the autorun is disabled...which in most of the cases is not.....


2.  The concept of zero day exploits has made it more dangerous....coz even if the user decides to run a antivirus scan...it will be shown free of any kind of virus or malware...the result is a silent compromise of the machine...however updated it remains in respect of OS or browsers or any application....the silent action in the background defies every lock of the user.Now all this is not based on some kind of imagination...there have been real life cases of which the one which made lots of noise is the IBM-AusCERT conference on the Gold Coast, Queensland, in which the free pendrives were infected by not one, but two pieces of malware.The details available at this link http://nakedsecurity.sophos.com/2010/05/21/ibm-distributes-usb-malware-cocktail-auscert-security-conference/

(CLICK ON THE IMAGE TO ENLARGE)
3.   In what must have been a highly embarrassing admission, IBM Australia sent an email to all AusCERT attendees warning them of the security screw-up...as shown in the screen shot above...besides this the famous stuxnet example was via pendrives lure....so if this is happening at such high levels of interactions,can the workshops u and me attend be left behind!!!!no way....so whats the way out?....best way is to buy one from a genuine store...(not sure how clean will that be?)...or still better refrain your self from picking one free pendrive.




Saturday, December 22, 2012

MALWARE via SUDOKU via EXCEL SHEET


1.  Sudoku is good for you brain....but it may compromise your PC if you have downloaded one of the excel files with embedded malicious script inside that offers you to play the subject game. Peter Szabo from SophosLabs has identified a piece of malware that resides behind a Microsoft Excel-based Sudoku generator. The Malware developed in Visual Basic requires macros, a scripting language that allows users to create equations based on values in different columns and rows. Microsoft – Malware behind Microsoft Excel-based Sudoku generator.

CLICK TO ENLARGE


2.   Although by default the macros are disabled in any Microsoft Office application....but any one who downloads the excel file would eventually enable the macros that run the script to play the game...so he can keep playing the game while the script in the background sets up the malware and establishes contact with its master bot.....so like always the updated Antivirus on the system will keep sitting without catching up anything.....so comes the importance of packet analyzers like Wireshark....ethreal etc...but then it becomes slight technical which in most cases would be out of purview for a common user.
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