When Lucifer became Satan and stated his 5 "I wills", he characteristically advances a counterfeit to God. It might be noted that just as any 'religion' will seek to advance a counterfeit plan to His plan or a system of philospohical positions tied to possibly the spiritual domain to counterfeit God's plan. Accordingly any such counterfeit system might be considered 'satanic' or adversarial to His. It is probably more meaningful to describe such religions as 'evil' as they are devises to promote a system counterfeit to God's plan and contrary to His will.
Perhaps a threat to promote evil here at home which poses a closer risk, is any counterfeit system based upon our will placed above that of God. Most notably, if one takes the position that the symptoms observed in militant Islamic belief give justification to eliminate Muslims and instead of remaining faithful to God on His terms, we establish policies to oppose 'fundamentalism' for the sake of 'feel-good' moderation, then we fall into the evil trap of 'do-gooder-ism'.
Do-gooders are in many ways just as evil as vengeful militant Muslims when they seek to promote their will over God's will.
For example, when the elder Bush agreed to Saudi demands to disallow the distribution of Bibles amongst US fighting forces during coalition building of Gulf War I, a very good case might be made for the evil inherant in the US foreign and military policies. Rather than a case of good fighting evil, we simply become another evil being allowed to destroy another evil in God's plan.
While we have the opportunity to decide our actions, I strongly encourage study of God's Word, so that when awkward situations arise, one already has doctrinally based viewpoints to remain in His will. God Bless.