C2 Check-in to web12api[.]com SignNow-themed Sentry-Electron Sibling Host

Ibrahim Saud@tektrix

•updated Sep 17, 2026•0•0•0

Detects network activity (DNS queries, TLS SNI, and HTTP requests) directed towards the 'web12api.com' domain, as well as specific HTTP response structures commonly associated with adversary registration or command-and-control communication protocols.