Password Spray
New password spraying attacks target Cisco, PAN VPN gateways
An automated campaign is targeting multiple VPN platforms, with credential-based attacks being observed on Palo Alto Networks GlobalProtect and Cisco SSL VPN. On December 11, threat monitoring platform GreyNoise observed the number of login attempts aimed at GlobalProtect portals peaked at 1.7 million during a period of 16 hours. Collected data showed that the attacks originated from […]
Botnet targets Basic Auth in Microsoft 365 password spray attacks
A massive botnet of over 130,000 compromised devices is conducting password-spray attacks against Microsoft 365 (M365) accounts worldwide, targeting basic authentication to evade multi-factor authentication. According to a report by SecurityScorecard, the attackers are leveraging credentials stolen by infostealer malware to target the accounts at a large scale. The attacks rely on non-interactive sign-ins using […]
Citrix shares mitigations for ongoing Netscaler password spray attacks
Citrix Netscaler is the latest target in widespread password spray attacks targeting edge networking devices and cloud platforms this year to breach corporate networks. In March, Cisco reported that threat actors were conducting password spray attacks on the Cisco VPN devices. In some cases, these attacks caused a denial-of-service state, allowing the company to find a DDoS vulnerability […]
Microsoft: Chinese hackers use Quad7 botnet to steal credentials
Microsoft warns that Chinese threat actors use the Quad7 botnet, compromised of hacked SOHO routers, to steal credentials in password-spray attacks. Quad7, also known as CovertNetwork-1658 or xlogin, is a botnet first discovered by security researcher Gi7w0rm that consists of compromised SOHO routers. Later reports by Sekoia and Team Cymru reported that the threat actors are targeting routers and networking devices from TP-Link, ASUS, Ruckus wireless […]