According to his generally reliable and authentic Acts, he was a soldier stationed in Upper Egypt who had the task of guarding a group of 7 monks awaiting execution.
It is stated that Varus was already a Christian at this point, but had weak faith.
During the Time of Troubles, many children of Russian Orthodox families were dying before they could be baptized.
This led Patriarch Hermogenes of Moscow to declare that the Canon of Saint Varus should be sung in churches on behalf of dead, unbaptized children.
This makes Varus a popular saint in Russia, as he is remembered as an intercessor on behalf of the suffering Russian people.