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PAPERWALL: Chinese Websites Posing as Local News Outlets Target Global Audiences with Pro-Beijing Content

A network of at least 123 websites operated from within the Peopleโ€™s Republic of China while posing as local news outlets in 30 countries across Europe, Asia, and Latin America, disseminates pro-Beijing disinformation and ad hominem attacks within much larger volumes of commercial press releases. We name this campaign PAPERWALL. We attribute the PAPERWALL campaign to Shenzhen Haimaiyunxiang Media Co., Ltd., aka Haimai, a PR firm in China based on digital infrastructure linkages between the firmโ€™s official website and the network. These findings confirm the increasingly important role private firms play in the realm of digital influence operations and the propensity of the Chinese government to make use of them.

https://citizenlab.ca/2024/02/paperwall-chinese-websites-posing-as-local-news-outlets-with-pro-beijing-content/


๐ŸŽ–@malwr
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New Zardoor backdoor used in long-term cyber espionage operation targeting an Islamic organization

Talos discovered a new, stealthy espionage campaign that has likely persisted since at least March 2021. The observed activity affects an Islamic non-profit organization using backdoors for a previously unreported malware family we have named โ€œZardoor.โ€

https://blog.talosintelligence.com/new-zardoor-backdoor/


๐ŸŽ–@malwr
HijackLoader Expands Techniques to Improve Defense Evasion

HijackLoader continues to become increasingly popular among adversaries for deploying additional payloads and tooling A recent HijackLoader variant employs sophisticated techniques to enhance its complexity and defense evasion CrowdStrike detects this new HijackLoader variant using machine learning and behavior-based detection capabilities  CrowdStrike researchers have identified a HijackLoader (aka IDAT Loader) sample that employs sophisticated evasion...

https://www.crowdstrike.com/blog/hijackloader-expands-techniques/


๐ŸŽ–@malwr
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CrowdStrike Defends Against Azure Cross-Tenant Synchronization Attacks

Azure cross-tenant synchronization (CTS) was made generally available on May 30, 2023, and introduced a new attack surface on Microsoft Entra ID (formerly Azure Active Directory) where attackers can move laterally to a partner tenant or create a backdoor on an existing tenant. CrowdStrike showcases two observed attack paths to outline how adversaries can abuse...

https://www.crowdstrike.com/blog/crowdstrike-defends-against-azure-cross-tenant-synchronization-attacks/


๐ŸŽ–@malwr
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CVE-2024-21412: Water Hydra Targets Traders with Microsoft Defender SmartScreen Zero-Day

The APT group Water Hydra has been exploiting the zero-day Microsoft Defender SmartScreen vulnerability (CVE-2024-21412) in its campaigns targeting financial market traders. This vulnerability, which has now been patched by Microsoft, was discovered and disclosed by the Trend Micro Zero Day Initiative.

https://www.trendmicro.com/en_us/research/24/b/cve202421412-water-hydra-targets-traders-with-windows-defender-s.html


๐ŸŽ–@malwr
Kasseika Ransomware Deploys BYOVD Attacks, Abuses PsExec and Exploits Martini Driver

In this blog, we detail our investigation of the Kasseika ransomware and the indicators we found suggesting that the actors behind it have acquired access to the source code of the notorious BlackMatter ransomware.

https://www.trendmicro.com/en_us/research/24/a/kasseika-ransomware-deploys-byovd-attacks-abuses-psexec-and-expl.html


๐ŸŽ–@malwr