Trojan.Ransomcrypt is a malicious ransomware infection and features several different variants. It may steal your passwords but the main activity associated with the trojan is encrypting user files of over 400 different file types.
Here are instructions on how to remove the threat and try and decrypt your files:
http://sensorstechforum.com/restore-files-encrypted-via-rsa-encryption-remove-cryptowall-and-other-ransomware-manually/This is an open discussion. You may share your experiences with the trojan, ask for any help decrypting files or removing the threats or simply provide more info about it.