Locky ransomware now encrypts users' files with the extension .aesir.

That word stands as a collective word for a pantheon of Old Norse Gods,
including Odin, Frigg, Thor, Baldr and Týr.
The other pantheon of Gods is called Venir.
Æsir can be translated as "Gods", because it is in plural.

This newest version of the Locky ransomware utilizes C2 (Command and Control) servers.
The infection is spread with fake documents, .js and .dll files, via spam e-mails.
New spam e-mail campaigns are spreading the infection very quickly.
You can read more about it in the article for the New Locky Ransomware with .aesir Files.

You should be careful around suspicious e-mails and such of unknown origins.
Backup your data and be prepared, because ransomware creators try to think of more ways to spread their malware.
This topic is not only about informing users about the new threat, but open for discussion.
You can ask questions, suggest ideas for coping with the threat or
share how you got infected and tell to others what they should avoid doing.

Best Regards,
Execute