Inside the FortiBleed Open Directory: A Technical Analysis of What the Attacker Left Behind
An exposed attacker server has unveiled FortiBleed, a large-scale credential-compromise campaign targeting internet-facing Fortinet FortiGate firewalls and SSL VPN gateways globally. This operation involved credential harvesting through reuse, brute force, and hash cracking using a distributed GPU infrastructure with approximately 36 rented GPUs via Hashtopolis. The exposed directory contained 319 files revealing scanning tools, cracking infrastructure, credential databases, post-exploitation toolkits, and active VPN configurations. While initially reported as affecting 21,632 domains, analysis of the attacker's own tooling reveals only 918 organizations showed evidence of internal network compromise, with merely 148 confirmed cases where credentials were fully cracked. The operation ultimately aimed to sell initial access to compromised networks, with victims spanning 194 countries, predominantly India, United States, and Taiwan.
Pulse ID: 6a358eb86925d602f0cf5600
Pulse Link: https://otx.alienvault.com/pulse/6a358eb86925d602f0cf5600
Pulse Author: AlienVault
Created: 2026-06-19 18:47:20
Be advised, this data is unverified and should be considered preliminary. Always do further verification.
#BruteForce #CredentialHarvesting #CyberSecurity #India #InfoSec #OTX #OpenThreatExchange #RAT #RCE #SSL #UnitedStates #VPN #bot #AlienVault