InfoWorld - Security Adviser: Should you worry about memory-only malware?

Some malware disappears when you reboot, but returns if you haven't plugged the hole where it came in. Is this scourge worse than others?

By Roger A. Grimes
FEBRUARY 04, 2014

The recent Target data heist of more than 40 million credit card records has many worrying about the impact of memory-only malware. The Target malware, a variant of BlackPOS, is part of a Trojan horse family known as Trojan.POSRAM. After the initial exploitation, these programs simply load themselves into RAM -- they don't install themselves on the hard drive.

The lack of "software footprint" makes RAM-only malware programs elusive. Some people say they're to be truly feared. Should we worry about them more than other malware programs?

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