Backoff is a kind of malware that targets point of sale (POS) systems.
[1][2] It is used to steal credit card data from point of sale machines at retail stores.
It is installed via remote desktop type applications where POS systems are configured.
The survey by Department of Homeland Security (DHS) states that thousands of businesses have been infected by Backoff POS Malware.
[11] Network security company Damballa records a 57 percent infection increase from Backoff malware during August 2014.