rule apt_hellsing_irene { meta: version = "1.0" filetype = "PE" author = "Costin Raiu, Kaspersky Lab" copyright = "Kaspersky Lab" date = "2015-04-07" description = "detection for Hellsing msger irene installer" strings: $mz="MZ" $a1="\\Drivers\\usbmgr.tmp" wide $a2="\\Drivers\\usbmgr.sys" wide $a3="common_loadDriver CreateFile error! " $a4="common_loadDriver StartService error && GetLastError():%d! " $a5="irene" wide $a6="aPLib v0.43 - the smaller the better" condition: ($mz at 0) and (4 of ($a*)) and filesize < 500000 }