Based on the principles of transparency, accessibility, usability, verifiability and perceptibility of security capabilities, Antiy releases weekly updates of the AVL SDK anti-virus engine and the full set of capabilities to the public every week.

1.Weekly Update                           

Statistical period: May 23, 2026 ~ May 29, 2026

Antiy AVL SDK anti-virus engine released a total of 84 virus database updates this week, with an average of 12 updates per day, adding 48 new detectable malware families, 6,384 new detectable malicious code variants, and 24,255 new detection rules.

The following table shows the TOP5 newly detectable malicious code families:

Number	Virus Name	Virus Description
1	Trojan/MSIL.WireBrush	This family is a type of Trojan that mainly spreads through phishing emails, malicious websites, or bundled with cracking software. Once infected, it establishes persistence and connects to remote servers to download and execute malicious programs, seriously threatening data and system security.
2	Trojan/Win64.Erikode[Dropper]	This family is a type of Trojan that mainly spreads through network downloads. It has the characteristics of independent propagation and strong concealment, and will attempt to hide itself, steal users’ sensitive information, and damage system security and stability.
3	Trojan/Win64.HydraWorn[Backdoor]	This family is a Trojan that enters the victim’s computer system by deceiving users or carrying other malicious software. Once infected, it will run in the background and steal sensitive information in a hidden way, monitor user activities, and send data to remote servers.
4	Trojan/Win32.GreenPlasma	This family is a type of Trojan that mainly lurks in computer systems through Trojan programs, monitoring users’ keyboard input and screen operations, and recording sensitive information such as accounts, passwords, etc.
5	Worm/Script.Shulud	This family is a kind of worm. Malicious payloads can silently reside on development terminals, business servers, and container clusters, enabling multi-dimensional credential theft, horizontal movement within the internal network, persistent control, and conditional data destruction.

(According to the HASH number of family samples within the period)

For more related content, please visit www.virusview.net (the Computer Virus Encyclopedia).

2. Full Detection Capabilities

As of 24:00 on May 29, 2026, the AVL SDK anti-virus engine can detect 18,585,736 malware variants of 57,929 malware families distributed in 8 basic categories, with a total of 41,979,781 detection rules.

The detection capabilities and the number of rules classified by malicious code are as follows:

Type	Detectable Malicious Code (Types)	Detection rules (Items)
Infectious viruses	59,654	6,815,339
Worms	315,267	3,944,211
Trojans	13,530,546	25,613,983
Hacking tools	458,144	364,679
Risk tools	1,206,457	2,229,152
Rogue software	3,015,631	3,011,235
Junk files	11	1,080
Test programs (for self-test)	26	102
Total	18,585,736	41,979,781

Preprocessing Capabilities (partial) :

There are 31 types of shells that can be unpacked (accurate to the type), and 132 packages that can be disassembled, including all common packages and self-extracting packages.

Supporting Knowledge Output Capabilities:

For malware payloads, the AVL SDK and the accompanying malware knowledge base can output 533 key behavior mapping tags, covering 139 categories of ATT&CK tactical tags, with a coverage rate of 64.29%, basically covering all the statically detectable tags in the ATT&CK framework.

3. Be on Guard Against These Virus Families This Week

This week, it is important to remain vigilant against the risk of open-source software supply chain worm (Worm/Script. Shulud) attacks. Recently, the overseas threat organization TeamPCP launched a large-scale cross ecological supply chain poisoning attack, targeting the Mini Shai Hulud malicious family, which is an advanced worm with self chain propagation capability. It poses a significant systemic security threat to global AI applications, web front-end, cloud native, and CI/CD research. The attacker stole the account permissions of mainstream open source project maintainers, and deployed tampered malicious components in batches in PyPI and npm official repositories. By relying on dependency relationships, they achieved cross project and cross enterprise chain fission infections, contaminating 323 open source components and generating 639 malicious versions. The weekly download volume of the package exceeded 2 billion times. This malicious payload can silently reside on development terminals, business servers, and container clusters, achieving multi-dimensional credential theft, horizontal movement within the intranet, persistent control, and conditional data destruction, which can easily trigger global security incidents. It is recommended that relevant users conduct a comprehensive investigation of contaminated dependent components.

Appendix: Introduction to Antiy AVL SDK Anti-Virus Engine

Antiy AVL SDK anti-virus engine is a threat detection capability middleware developed by Antiy for all architectures and system platforms. By embedding the AVL SDK, Antiy products and ecosystem partners’ products can acquire virus and malicious code detection capabilities, and receive continuous updates through the virus database.

For eight malicious code categories including infectious viruses, worms, Trojans, hacking tools, gray software, risky software, junk files, and test files, it accurately identifies and detects over 50,000 families and 18 million malicious code variants. The detection capability fully covers all known malicious codes and strictly adheres to the CARO convention. The output is structured and named in sections by classification, environment, and family, and based on the behavioral capabilities of malicious samples, it outputs nearly a hundred types of malicious behavior tags for typical malicious behaviors such as encryption ransomware, data theft, remote control, botnet programs, and mining. Antiy Engine can recognize over 300 file formats and conduct in-depth preprocessing on compilable executable formats such as PE and ELF. It also performs recursive unpacking of various packages (including self-extracting archives), and conduct structural analysis of compound documents such as OFFICE and ACAD files that may contain embedded scripts or vulnerability-prone formats. This ensures high robustness against malicious code. Antiy Engine also comes with a trusted file signature library, supporting the product to implement security policies based on blacklist and whitelist controls, significantly enhancing the difficulty for attackers.

Antiy’s detection capabilities can be fully deployed locally. Antiy automatically analyzes and processes over 2 million new file objects on average every day and releases a virus database update every two hours. It also provides support services such as cloud detection, cloud analysis, and computer virus encyclopedia.

Antiy AVL SDK is available in various versions such as traditional PC hosts, smart terminals, network traffic, IT application innovation systems, industrial systems, and unmanned systems. It provides threat detection capabilities for scenarios including host system and workload security, network traffic security, business flow security, email and file service security, etc. It fully supports various architectures such as X86, ARM, MIPS (including Cavium), RISC, and PowerPC, supports a variety of mainstream operating systems including domestic operating systems, Linux, and Windows, as well as real-time industrial operating systems like Vxwork. It also supports high-speed detection in backbone network scenarios.

Antiy AVL SDK empowers over 100 industry partners. In addition to Antiy’s own product deployment, Antiy Engine has cumulatively covered more than 4 billion nodes (including mobile terminals, secure and controllable PC endpoints, cloud-native nodes, network devices, network security devices, etc.), providing inherent security detection capabilities for mobile phones and smart terminals. The main partners using Antiy Engine include mobile phone enterprises such as Huawei, Xiaomi, Honor, VIVO and OPPO, large Internet enterprises such as Ant Financial, and several listed cybersecurity companies. Partner products using Antiy Engine have won internationally renowned evaluation awards such as AV-TEST and NSS Labs. The “L Tomahawk” logo of AVL SDK has become a symbol of reliable anti-virus capabilities.

All of Antiy’s products, including but not limited to IEP security protection system product family, Unified Workload Protect, Persistent Threat Detection System (PTD), Persistent Threat Analysis System (PTA), Attack Capture System, Qingzhu Zhiyu WAF, etc., all use Antiy anti-virus engine.

The AVL SDK anti-virus engine has been under development since 2001 and has undergone significant version upgrades and iterations. It has successively received support from key national initiatives, including: the Ministry of Science and Technology’s Innovation Fund for Technology-based Firms (2004), the Ministry of Science and Technology’s National High-Tech R&D Program (863 Program) (2006), the National Development and Reform Commission’s Information Security Special Project (2008), and the Ministry of Industry and Information Technology’s Engineering Special Project (2019). The mobile version of AVL SDK won the 2014 AV-TEST Best Protection Award for Mobile Devices. Products powered by the AVL SDK, Antiy PTD and PTA, won first place in both the first and second National Cybersecurity Technology Challenge competitions hosted by the National Computer Network Emergency Response Technical Team/Coordination Center of China (CNCERT/CC).