SQUIRRELWAFFLE Leverages malspam to deliver Qakbot, Cobalt Strike

By Edmund Brumaghin, Mariano Graziano and Nick Mavis. Executive summary Recently, a new threat, referred to as "SQUIRRELWAFFLE" is being spread more widely via spam campaigns, infecting systems with a new malware loader. This is a malware family that's been spread with increasing regularity and...

A Rust-based Buer Malware Variant Has Been Spotted in the Wild

Cybersecurity researchers on Monday disclosed a new malspam campaign distributing a fresh variant of a malware loader called "Buer" written in Rust, illustrating how adversaries are constantly honing their malware toolsets to evade analysis. Dubbed "RustyBuer," the malware is propagated via email...

Malware Loader Abuses Google SEO to Expand Payload Delivery

The Gootloader malware loader, previously used for distributing the Gootkit malware family, has undergone what researchers call a “renaissance” when it comes to payload delivery. New research released this week paints Gootloader as an increasingly sophisticated loader framework, which has now...

Valak Loader Revamped to Rob Microsoft Exchange Servers

Threat actors have revamped a popular malware loader into a stealthy infostealer that targets Microsoft Exchange servers to pilfer enterprise mailing information, passwords and enterprise certificates, researchers have found. Security researchers from Cybereason Nocturnus have discovered Valak, a...

New Loader Variant Behind Widespread Malware Attacks

Behind a recent wave of cyberattacks, pelting PCs with FormBook, LokiBot, SmokeLoader malware, is an updated version of a malware-loading technique called TxHollower. It is described as a new “significant threat”, according to researchers, who added, attacks using TxHollower have “spread like...

New Electrum DDoS botnet steals $4.6M after infecting 152,000 hosts

By Ryan De Souza The majority of the bots are located in Brazil and Peru but the number of victims is constantly increasing across diverse regions. Threat actors who previously targeted cryptocurrency wallets through Distributed Denial of Service DDoS attacks have now launched another malware...