Geert Moernaut LSrunasE allows local users to gain privileges by obtaining the encrypted password from a batch file, and constructing a modified batch file that specifies this password in the /password switch and specifies an arbitrary program in the

Geert Moernaut LSrunasE and Supercrypt use an encryption key composed of an SHA1 hash of a fixed string embedded in the executable file, which makes it easier for local users to obtain this key without reverse engineering.

Geert Moernaut LSrunasE 1.0 and Supercrypt 1.0 use the RC4 stream cipher without constructing a unique initialization vector (IV), which makes it easier for local users to obtain cleartext passwords.