Malware | Breaking Cybersecurity News | The Hacker News

Attackers keep finding new keys. The funny part is that defenders keep inventing where to store them. This week, those keys sit in AI tools, exposed services, old bugs, weak logins, and software sold like a monthly subscription. Some attacks use new tricks. Others just reuse what was already lying around. Both work often enough. So the threat landscape is not getting cleaner. It is just getting more places to make the same mistake. Here’s what showed up this week. The threats change every week. Subscribe, and we’ll alert you when each new ThreatsDay Bulletin is out.

The Iran-linked "hacktivist" persona known as Handala Hack has been attributed to a Telegram-based surveillance backdoor called HEAVYGRAM and a Delphi-based utility known as CRUDEEXCLUDE . "HEAVYGRAM offers builtin commands supporting remote command execution, system, network and process information discovery, data and Telegram session files exfiltration, screenshot capture, DLL sideloading, file cleanup, and persistence via Windows autorun registry keys," Group-IB said . On the other hand, CRUDEEXCLUDE is a Delphi-based Windows utility employed to prepare environments for the deployment of subsequent stages such as HEAVYGRAM. First observed in late July 2024, the malware is often disguised as a legitimate application with a graphical user interface (GUI), and configures Microsoft Defender exclusion paths for defense evasion. The findings build upon an alert the U.S. Federal Bureau of Investigation (FBI) first issued in March 2026 and again earlier this wee...

The China-aligned state-sponsored threat actor known as FamousSparrow has been observed deploying a previously unreported backdoor called SparroWocky in attacks targeting multiple countries in Latin America since at least August 2025. "SparroWocky is a modular, C++ backdoor," ESET security researchers Alexandre Côté Cyr and Romain Dumont said in a technical report shared with The Hacker News ahead of publication. "Its architecture and the techniques used by its authors indicate strong knowledge of anti-analysis tricks and Windows internals." SparroWocky is so named for the fact that early iterations of the malware have been found to contain the first stanza of Jabberwocky , a famous nonsense poem written by the English author, poet, and mathematician Lewis Carroll in around 1855. The latest findings from ESET indicate that the cyber espionage group , which shares some level of overlap with Earth Estries and Salt Typhoon, has replaced SparrowDoor with Spar...

Enterprises in Russia have emerged as the target of three threat activity clusters tracked as NightEagle , Hacking Cat , and Toy Ghouls , according to multiple reports from Kaspersky. The cybersecurity vendor said it has identified attacks mounted by NightEagle (aka APT-Q-95), a threat actor known to be active since at least 2023, that involve new techniques for persistence and lateral movement. "In most incidents, the attackers used compromised valid credentials to gain access to corporate VPNs," Kaspersky said in an analysis published today. "VPN connections originated from IP addresses in the Russian segment linked to Cloudflare WARP tunnels, as well as from IP addresses associated with European virtual infrastructure providers." The attacks, as highlighted in July 2025, involve the deployment of GhostContainer , a known modular backdoor that grants the operators complete access to a victim's Microsoft Exchange Server, as well as run arbitrary code, ...

Mandiant says an attacker hijacked an active AI coding-assistant session at an unnamed software-as-a-service provider and later spread  Shai-Hulud  across about 100 internal code repositories. Before the repository spread, the assistant recommended software that the attacker had poisoned, and the recommendation was accepted. The worm stole repository secrets and source code for the company's products. The case appears in  Mandiant's September 2026 report . The public case study does not say when the intrusion happened or how the attacker took over the active coding-assistant session. How the Attack Unfolded After the recommendation was accepted, the attacker used the developer's active session to install an infostealer through a poisoned PyPI package. The attacker also stole GitHub OAuth tokens. The attacker then deployed the self-spreading Shai-Hulud worm across approximately 100 internal code repositories. The attacker also poisoned a package in the company...