Malware
LONGWATCH
The primary function of LONGWATCH is a keylogger that outputs keystrokes to a log.txt file in the Windows temp folder.
LONGWATCH is a Windows malware family operated by APT34.
Background
LONGWATCH operates primarily as a keylogger, writing captured keystrokes to a log.txt file located in the Windows temp folder.
Source: Malpedia (Fraunhofer FKIE).