Doctrines of Demons

What does the Bible have to say about the End Times? Matthew’s Gospel records the warning of Jesus where he said, "Take heed that no one deceives you." The apostle Paul expands on this by stating, "Now the Spirit expressly says that in latter times some will depart from the faith, giving heed to deceiving spirits and doctrines of demons." Satan often relies on deception through disinformation. Misinformation is defined an accidental untruth where disinformation is the intentional misrepresentation of the truth. Therefore, doctrines of demons are creeds that offer counterfeit truths. What are these "doctrines of demons" that the Bible warns us about? Is there "another Jesus" being accepted by many within the world today? Is there "another Spirit" working in the world today?