VERY IMPORTANT

A previously unknown group called Strider has been conducting cyberespionage-style attacks against selected targets in Russia, China, Sweden, and Belgium. The group uses an advanced piece of malware known as Remsec (Backdoor.Remsec) to conduct its attacks. Remsec is a stealthy tool that appears to be primarily designed for spying purposes. Its code contains a reference to Sauron, the all-seeing antagonist in Lord of the Rings. Strider’s attacks have tentative links with a previously uncovered group, Flamer. The use of Lua modules, which we’ll discuss later, is a technique that has previously been used by Flamer. One of Strider’s targets had also previously been infected by Regin.