Text data file used by Kaspersky Anti-Virus and Internet Security computer security programs; stores a single line of text containing two strings of digits separated by a semicolon; likely used for tracking information about virus scans and software updates.

The latter digit string stored in an STT file is in a YYYYMMDDHHHH format, where Y is the year, M is the month, D is the day, and H is the time in a 24-hour format. In Windows, STT files can be found in the following directory:\ProgramData\Kaspersky Lab\AVP11\Bases\Stat\ In Mac OS X, the default STT file is named kdb.stt and is located in the /Library/Application Support/Kaspersky Lab/KAV/Bases/Stat/ directory.