“Ghost-Sender" is the result of a widespread misconfiguration, according to researchers, and evidence indicates it's being actively abused in the wild.

The attacks stemmed from a GitHub account that was also compromised in a previous Miasma attack on Microsoft last month.

Two separate campaigns target CVE-2025-8088, fixed last July, to conduct data theft and cyberespionage against military and government targets in Ukraine.

The financially motivated group is combining vishing, IT impersonation, and in-person office intrusions to steal data and extort victims.