Quick response (QR) codes are a two-dimensional matrix barcode used to hide the secret information. By using special application that can be scanned by a mobile camera to view the information. Some users share the site links in QR code. Spammers hack that code and they modify that original site link to counterfeit links. Unknowingly user view that code and enter into scams site and they give their personal information such as bank password, mail password,etc…
According to Security firm Websense, scammers mainly trying to hawk the male enhancement drugs. In this case, original manufacturer give QR code having legitimate site to buy online drugs. The link leads to an already created QR code, which can be scanned by a mobile reader application available in places like Android Market. It scans the QR code and load counterfeit goods including Viagra and cialis.
According to a current study by Chadwick Martin Bailey, around half of the 1,200 consumers surveyed that one of 21 per cent consumers share their personal information on QR code. Curiosity and information-gathering were the primary reasons for wanting to scan a code, with the promise of discounts and special offers a particular incentive, just the sort of interest that cyber crooks often exploit for their own nefarious ends.
QR codes are mainly used as a marketing tool for advertisers so that customers can get more information on products or services, cyber criminals know that services that pique interest or offer 'special deals' are often prime targets for spreading malware, stealing identities and phishing for personal information. QR codes make things run faster and easier, but they can also pose a threat to your mobile security.
In Russia, there is a one famous malicious attack using QR involves Trojan disguised as a mobile application called “Jimm”. If it once installed, “Jimm” sent a series of expensive text messages to premium-rate numbers, leaving victims out of pocket as a result