MerkSpy: Exploiting CVE-2021-40444 to Infiltrate Systems

Spyware is malicious software engineered to covertly monitor and gather information from a user’s computer without their awareness or consent. It can record activities like keystrokes, browsing behavior, and personal information, often transmitting this data to a third party for Read More …

New Orcinius Trojan Uses VBA Stomping to Mask Infection

This week, the SonicWall Capture Labs threat research team investigated a sample of Orcinius malware. This is a multi-stage trojan that is using Dropbox and Google Docs to download second-stage payloads and stay updated. It contains an obfuscated VBA macro Read More …

ExCobalt: GoRed, the hidden-tunnel technique

While responding to an incident at one of their clients, the PT ESC CSIRT team discovered a previously unknown backdoor written in Go, which they attributed to a cybercrime gang dubbed ExCobalt. ExCobalt focuses on cyberespionage and includes several members Read More …

LevelBlue Labs Discovers Highly Evasive, New Loader Targeting Chinese Organizations

LevelBlue Labs recently discovered a new highly evasive loader that is being delivered to specific targets through phishing attachments. A loader is a type of malware used to load second-stage payload malware onto a victim’s system. Due to the lack Read More …

Void Arachne Targets Chinese-Speaking Users With the Winos 4.0 C&C Framework

In early April, Trend Micro researchers discovered that a new threat actor group (which they call Void Arachne) was targeting Chinese-speaking users. Void Arachne’s campaign involves the use of malicious MSI files that contain legitimate software installer files for artificial Read More …

Malvertising Campaign Leads to Execution of Oyster Backdoor

Rapid7 has observed a recent malvertising campaign that lures users into downloading malicious installers for popular software such as Google Chrome and Microsoft Teams. The installers were being used to drop a backdoor identified as Oyster, aka Broomstick. Following execution Read More …

DISGOMOJI Malware Used to Target Indian Government

In 2024, Volexity identified a cyber-espionage campaign undertaken by a suspected Pakistan-based threat actor that Volexity currently tracks under the alias UTA0137. The malware used in these recent campaigns, which Volexity tracks as DISGOMOJI, is written in Golang and compiled Read More …

Noodle RAT: Reviewing the Backdoor Used by Chinese-Speaking Groups

Since 2022, Trend Micro researchers have been investigating numerous targeted attacks in the Asia-Pacific region that used the same ELF backdoor. Most vendors identify this backdoor as a variant of existing malware such as Gh0st RAT or Rekoobe. However, Trend Read More …