Some modules could have been created before 2003
Some of the modules used in cyber-espionage toolkit Regin are likely to have been created before the malware platform and integrated into it as they were readily available.
Security researchers from Kaspersky analyzed Hopscotch and Legspin components discovered in Regin advanced persistent threat (APT) and determined that they could have been used separately for lateral movement and as a backdoor into systems targeted in other attacks.
Simple tool for lateral movement
According to the analysis from Costin Raiu and Igor Soumenkov, Hopscotch is an interactive tool that permits moving deeper into the targeted network. It does not contain any exploits but includes an executable file for lateral movement activity. Full Article.