article thumbnail

Multiple DDoS botnets were observed targeting Zyxel devices

Security Affairs

Researchers warn of several DDoS botnets exploiting a critical flaw tracked as CVE-2023-28771 in Zyxel devices. Fortinet FortiGuard Labs researchers warned of multiple DDoS botnets exploiting a vulnerability impacting multiple Zyxel firewalls. Mirai botnets are frequently used to conduct DDoS attacks.”

DDOS 97
article thumbnail

Fake DDoS protection pages on compromised WordPress sites lead to malware infections

Security Affairs

Threat actors compromise WordPress sites to display fake Cloudflare DDoS protection pages to distribute malware. DDoS Protection pages are associated with browser checks performed by WAF/CDN services which verify if the site visitor is a human or a bot. The file poses as a tool required to bypass the DDoS verification.

DDOS 93
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

KillNet hits healthcare sector with DDoS attacks

Malwarebytes

At the end of January, the Health Sector Cybersecurity Coordination Center warned that the KillNet group is actively targeting the US healthcare sector with distributed denial-of-service (DDoS) attacks. The Cybersecurity and Infrastructure Security Agency (CISA) says it helped dozens of hospitals respond to these DDoS incidents.

DDOS 81
article thumbnail

Zxyel Flaw Powers New Mirai IoT Botnet Strain

Krebs on Security

In February, hardware maker Zyxel fixed a zero-day vulnerability in its routers and VPN firewall products after KrebsOnSecurity told the company the flaw was being abused by attackers to break into devices. Security experts at Palo Alto Networks said Thursday their sensors detected the new Mirai variant — dubbed Mukashi — on Mar.

IoT 246
article thumbnail

Experts analyzed attacks against poorly managed Linux SSH servers

Security Affairs

Researchers warn of attacks against poorly managed Linux SSH servers that mainly aim at installing DDoS bot and CoinMiner. Researchers at AhnLab Security Emergency Response Center (ASEC) are warning about attacks targeting poorly managed Linux SSH servers, primarily focused on installing DDoS bots and CoinMiners.

DDOS 114
article thumbnail

New Tsunami botnet targets Linux SSH servers

Security Affairs

Researchers warn of an ongoing Tsunami DDoS botnet campaign targeting inadequately protected Linux SSH servers. Researchers from AhnLab Security Emergency response Center (ASEC) have uncovered an ongoing hacking campaign, aimed at poorly protected Linux SSH servers, to install the Tsunami DDoS botnet (aka Kaiten).

DDOS 85
article thumbnail

New shc Linux Malware used to deploy CoinMiner

Security Affairs

The experts believe attackers initially compromised targeted devices through a dictionary attack on poorly protected Linux SSH servers, then they installed multiple malware on the target system, including the Shc downloader, XMRig CoinMiner, and a Perl-based DDoS IRC Bot. ” reads the report published by ASEC.

Malware 95