64-bit Version of MIRAS Used in Targeted Attack

We have been investigating the MIRAS malware family, which was recently linked to attacks that targeted a Europe-based IT company. Our analysis shows that MIRAS, or BKDR64_MIRAS.B is a 64-bit malware that was used for the data exfiltration stage in a targeted attack. MIRAS is available in 32-bit (BKDR_MIRAS.B) and 64-bit (BKDR64_MIRAS.B) Windows operating systems. An analysis of BKDR64_MIRAS.B To serve…