This "Invisible Malware" and "virtually invisible and capable of operating undetected for long periods of time" is ransomware Win32/Urausy.
That what is happening when somebody is trying to play in serious bussiness without serious brain.dll installed. Also notice a date when they "discovered" this 2.5 years old malware - March 2014, nothing comes to a mind?
Sentinel Labs is focused on reinventing endpoint security toI only hope they all ex-workers and I think I now know why they were fired.
protect organizations from advanced threats and nation state
malware. The company was formed by an elite team of cyber
security and defense experts from Intel, McAfee, Checkpoint,
IBM, and the Israel Defense Forces