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Chinese APT Group Reportedly Develops Custom Backdoor

Chinese APT Group Reportedly Develops Custom Backdoor
@prajeetspeaks) •
June 9, 2021
Full infection chain (Source: Check Point Research)
Check Point researchers have uncovered an ongoing campaign by a Chinese advanced persistent threat group that has spent the last three years testing and refining a custom backdoor in its arsenal to conduct espionage campaigns targeting governments in Southeast Asia.
The group, dubbed SharpPanda, uses spear-phishing attacks to gain initial access and leverage old Microsoft Office vulnerabilities together with a chain of in-memory loaders to attempt to install a previously unknown backdoor on victims’ machines.
Researchers note that the first stage of the infection chain s command-and-control servers is hosted by two different cloud services, located in Asia, in Hong Kong and Malaysia. The backdoor command-and-control server is hosted on Zen ....

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Cyber espionage campaign targets Southeast Asian government

Cyber espionage campaign targets Southeast Asian government
Cyber espionage campaign targets Southeast Asian government
The attackers developed a previously unknown backdoor into the Windows software running on the PCs of victims.
Credit: Dreamstime
A Chinese threat group has been fingered by researchers at Check Point Software as the culprit behind a new cyber espionage weapon after the cyber security provider identified and blocked an ongoing surveillance operation targeting an unnamed Southeast Asian government.
It is believed that over the course of three years the attackers developed a previously unknown backdoor into the Windows software running on the PCs of victims, enabling live espionage, such as screenshotting, editing files and running commands, according to Check Point Research, the security vendor’s cyber threat intelligence team. ....

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Chinese Hackers Using Previously Unknown Backdoor

By Kevin Townsend on June 03, 2021
Newly discovered cyber weapon uses elaborate multi-stage infection-chain to make detection and analysis difficult
Researchers have discovered a new cyber espionage weapon they believe was developed and is used by a China-based APT group they have named SharpPanda. A previously unknown Windows backdoor enables remote access and the collection of considerable live data – but only during Chinese working hours.
An ongoing campaign is targeting the Ministry of Foreign Affairs in a Southeast Asian country. It starts with the spear-phishing email delivery of a weaponized document – although in one sense it starts earlier with the attackers stealing genuine documents from another department in the same government to add authenticity to the real campaign. ....

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Kaspersky: Exploits for MS Office Flaws Most Popular in Q1 2021

By Ionut Arghire on June 01, 2021
Exploits for vulnerabilities in Microsoft’s Office suite were the most popular among cyber-attackers during the first quarter of this year, according to a new Kaspersky report.
Microsoft Office exploits accounted for more than half (59%) of the observed exploits, with CVE-2017-11882 (a stack buffer overflow in the Equation Editor component) remaining the most commonly targeted vulnerability.
Additionally, exploits for vulnerabilities such as CVE-2015-2523 (use-after-free in Excel) and CVE-2018-0802 (memory corruption leading to remote code execution) were also highly popular, which, given the age of this security flaws, once again underlines the need for timely patches. ....

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New Chinese Malware Targeted Russia's Largest Nuclear Submarine Designer

New Chinese Malware Targeted Russia s Largest Nuclear Submarine Designer
A threat actor believed to be working on behalf of Chinese state-sponsored interests was recently observed targeting a Russia-based defense contractor involved in designing nuclear submarines for the naval arm of the Russian Armed Forces.
The phishing attack, which singled out a general director working at the Rubin Design Bureau, leveraged the infamous Royal Road Rich Text Format (RTF) weaponizer to deliver a previously undocumented Windows backdoor dubbed
PortDoor, according to Cybereason s Nocturnus threat intelligence team.
Portdoor has multiple functionalities, including the ability to do reconnaissance, target profiling, delivery of additional payloads, privilege escalation, process manipulation static detection antivirus evasion, one-byte XOR encryption, AES-encrypted data exfiltration and more, the researchers said in a write-up on Friday. ....

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