Hi,
Every organization uses different naming conventions to detect new threats.
Ransomware is a problem that has been with us for several years, Trojan.Ransomlock is not a detection for one single threat, or variants of one single threat. It is the detection name for a full class of malware - one that has become increasingly common the past several years. With new Ransomware malware discovered on a daily basis, end-user education is an important part of the protection. The videos and other resources below are aimed to help users recognize this set of threats.
Video: Ransomware – A Growing Menace
http://www.symantec.com/tv/products/details.jsp?vid=1954285164001
Symantec provides a set of removal instructions that can help to remove these threats. We have also published a whitepaper that describes, in more detail, the recent developments in the ransomware threat.