New ShroudedSnooper actor targets telecommunications firms in the Middle East with novel Implants

Cisco Talos recently discovered a new malware family were calling "HTTPSnoop" being deployed against telecommunications providers in the Middle East. HTTPSnoop is a simple, yet effective, backdoor that consists of novel techniques to interface with Windows HTTP kernel drivers and devices to liste...

Common TTPs of attacks against industrial organizations

In 2022 we investigated a series of attacks against industrial organizations in Eastern Europe. In the campaigns, the attackers aimed to establish a permanent channel for data exfiltration, including data stored on air-gapped systems. Based on similarities found between these campaigns and...

Reptile Rootkit: Advanced Linux Malware Targeting South Korean Systems

Threat actors are using an open-source rootkit called Reptile to target Linux systems in South Korea. "Unlike other rootkit malware that typically only provide concealment capabilities, Reptile goes a step further by offering a reverse shell, allowing threat actors to easily take control of...

China's APT31 Suspected in Attacks on Air-Gapped Systems in Eastern Europe

A nation-state actor with links to China is suspected of being behind a series of attacks against industrial organizations in Eastern Europe that took place last year to siphon data stored on air-gapped systems. Cybersecurity company Kaspersky attributed the intrusions with medium to high...

Critical Flaws in AMI MegaRAC BMC Software Expose Servers to Remote Attacks

Two more security flaws have been disclosed in AMI MegaRAC Baseboard Management Controller BMC software that, if successfully exploited, could allow threat actors to remotely commandeer vulnerable servers and deploy malware. "These new vulnerabilities range in severity from High to Critical,...

CISA Releases Cybersecurity Advisory on Threat Actors Exploiting Citrix CVE-2023-3519

The Cybersecurity and Infrastructure Security Agency CISA released a Cybersecurity Advisory CSA, Threat Actors Exploiting Citrix CVE-2023-3519 to Implant Webshells, to warn organizations about threat actors exploiting CVE-2023-3519, an unauthenticated remote code execution RCE vulnerability...

Silver vulnerable to MitM attack against implants due to a cryptography vulnerability

Summary The current cryptography implementation in Sliver up to version 1.5.39 allows a MitM with access to the corresponding implant binary to execute arbitrary codes on implanted devices via intercepted and crafted responses. Reserved CVE ID: CVE-2023-34758 Details Please see the PoC repo. PoC...

CloudWizard APT: the bad magic story goes on

In March 2023, we uncovered a previously unknown APT campaign in the region of the Russo-Ukrainian conflict that involved the use of PowerMagic and CommonMagic implants. However, at the time it was not clear which threat actor was behind the attack. Since the release of our report about...

Tomiris called, they want their Turla malware back

Introduction We introduced Tomiris to the world in September 2021, following our investigation of a DNS-hijack against a government organization in the Commonwealth of Independent States CIS. Our initial report described links between a Tomiris Golang implant and SUNSHUTTLE which has been...

ScarCruft's Evolving Arsenal: Researchers Reveal New Malware Distribution Techniques

The North Korean advanced persistent threat APT actor dubbed ScarCruft is using weaponized Microsoft Compiled HTML Help CHM files to download additional malware onto targeted machines. According to multiple reports from AhnLab Security Emergency response Center ASEC, SEKOIA.IO, and Zscaler, the...

Researchers Say China State-backed Hackers Breached a Digital Certificate Authority

A suspected Chinese state-sponsored actor breached a digital certificate authority as well as government and defense agencies located in different countries in Asia as part of an ongoing campaign since at least March 2022. Symantec, by Broadcom Software, linked the attacks to an adversarial group...

APT trends report Q3 2022

For more than five years, the Global Research and Analysis Team GReAT at Kaspersky has been publishing quarterly summaries of advanced persistent threat APT activity. These summaries are based on our threat intelligence research; and they provide a representative snapshot of what we have publishe...

CVE-2022-41576

The rphone module has a script that can be maliciously modified.Successful exploitation of this vulnerability may cause irreversible programs to be implanted on user devices...

The art and science behind Microsoft threat hunting: Part 1

At Microsoft, we define threat hunting as the practice of actively looking for cyberthreats that have covertly or not so covertly penetrated an environment. This involves looking beyond the known alerts or malicious threats to discover new potential threats and vulnerabilities. Why do incident...

MagicRAT: Lazarus’ latest gateway into victim networks

By Jung soo An, Asheer Malhotra and Vitor Ventura. Cisco Talos has discovered a new remote access trojan RAT we're calling "MagicRAT," developed and operated by the Lazarus APT group, which the U.S. government believes is a North Korean state-sponsored actor. Lazarus deployed MagicRAT after the...

Manjusaka: A Chinese sibling of Sliver and Cobalt Strike

By Asheer Malhotra and Vitor Ventura. Cisco Talos recently discovered a new attack framework called "Manjusaka" being used in the wild that has the potential to become prevalent across the threat landscape. This framework is advertised as an imitation of the Cobalt Strike framework. The implants...

Experts Uncover New 'CosmicStrand' UEFI Firmware Rootkit Used by Chinese Hackers

An unknown Chinese-speaking threat actor has been attributed to a new kind of sophisticated Unified Extensible Firmware Interface UEFI firmware rootkit called CosmicStrand. "The rootkit is located in the firmware images of Gigabyte or ASUS motherboards, and we noticed that all these images are...

Nimc2 - A C2 Fully Written In Nim

nimc2 is a very lightweight C2 written fully in nim implant & server. If you want to give it a try check out the wiki to learn how to install and use nimc2. It's features include: Windows & Linux implant generation TCP socket communication with HTTP communication coming soon Ability to create as...

Microsoft Blocks Iran-linked Lebanese Hackers Targeting Israeli Companies

Microsoft on Thursday said it took steps to disable malicious activity stemming from abuse of OneDrive by a previously undocumented threat actor it tracks under the chemical element-themed moniker Polonium. In addition to removing the offending accounts created by the Lebanon-based activity group...

New Lenovo UEFI Firmware Vulnerabilities Affect Millions of Laptops

Three high-impact Unified Extensible Firmware Interface UEFI security vulnerabilities have been discovered impacting various Lenovo consumer laptop models, enabling malicious actors to deploy and execute firmware implants on the affected devices. Tracked as CVE-2021-3970, CVE-2021-3971, and...