Peach Sandstorm password spray campaigns enable intelligence collection at high-value targets

Since February 2023, Microsoft has observed password spray activity against thousands of organizations carried out by an actor we track as (HOLMIUM). Peach Sandstorm is an Iranian nation-state threat actor who has recently pursued organizations in the satellite, defense, and Read More …

A peek into APT36’s updated arsenal

In July 2023, Zscaler ThreatLabz discovered new malicious activity perpetuated by the Pakistan-based advanced persistent threat group (APT36). APT36 is a sophisticated cyber threat group with a history of conducting targeted espionage operations in South Asia. Zscaler ThreatLabz observed APT36 Read More …

Redfly: Espionage Actors Continue to Target Critical Infrastructure

Espionage actors are continuing to mount attacks on critical national infrastructure (CNI) targets, a trend that has become a source of concern for governments and CNI organizations worldwide. Symantec’s Threat Hunter Team has found evidence that a threat actor group Read More …

CISA, FBI, and CNMF Release Advisory on Multiple Nation-State Threat Actors Exploit CVE-2022-47966 and CVE-2022-42475

Today, CISA, Federal Bureau of Investigation (FBI), and U.S. Cyber Command’s Cyber National Mission Force (CNMF) published a joint Cybersecurity Advisory (CSA), Multiple Nation-State Threat Actors Exploit CVE-2022-47966 and CVE-2022-42475. This CSA provides information on an incident at an Aeronautical Read More …

Anonymous Sudan hacks X to put pressure on Elon Musk over Starlink

A hacking group called Anonymous Sudan took X, formerly known as Twitter, offline in more than a dozen countries on Tuesday morning in an attempt to pressurise Elon Musk into launching his Starlink service in their country. X was down Read More …

Earth Estries Targets Government, Tech for Cyberespionage

Earlier this year, Trend Micro researchers discovered a new cyberespionage campaign by a hacker group we named Earth Estries. Based on their observations, Earth Estries has been active since at least 2020. The researchers also found some overlaps between the Read More …

Diving Deep into UNC4841 Operations Following Barracuda ESG Zero-Day Remediation (CVE-2023-2868)

On June 15, 2023, Mandiant released a blog post detailing an 8-month-long global espionage campaign conducted by a Chinese-nexus threat group tracked as UNC4841. Over the course of this follow up blog post, Mandiant researchers will detail how UNC4841 has Read More …

Flax Typhoon using legitimate software to quietly access Taiwanese organizations

Microsoft has identified a nation-state activity group tracked as Flax Typhoon, based in China, that is targeting dozens of organizations in Taiwan with the likely intention of performing espionage. Flax Typhoon gains and maintains long-term access to Taiwanese organizations’ networks Read More …

Lazarus Group’s infrastructure reuse leads to discovery of new malware

In the new Lazarus Group campaign we recently disclosed, the North Korean state-sponsored actor continues to use much of the same infrastructure despite those components being well-documented by security researchers over the years. Their continued use of the same tactics, Read More …

Carderbee: APT Group use Legit Software in Supply Chain Attack Targeting Orgs in Hong Kong

A previously unknown advanced persistent threat (APT) group used the legitimate Cobra DocGuard software to carry out a supply chain attack with the goal of deploying the Korplug backdoor (aka PlugX) onto victim computers. In the course of this attack, Read More …