Communications of the ACM - Artificial Intelligence 10月27日 22:48
人工智能赋能网络犯罪,防御挑战升级
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人工智能正以前所未有的方式加速网络犯罪的演变,显著降低了复杂攻击的门槛。生成式AI模型能够生成逼真的文本、模仿声音,并自动化攻击流程,使得技术门槛极低的犯罪活动日益猖獗。从勒索软件激增到高度个性化的网络钓鱼和逼真的深度伪造,AI已成为犯罪分子的强大工具。文章深入剖析了AI如何重塑网络犯罪的产业化模式,如“服务型勒索软件”(RaaS),并探讨了AI在防御方面的应用潜力,同时强调了加强网络安全基础、实施零信任架构以及对进攻性AI进行监管的必要性,以应对这场日益严峻的网络安全军备竞赛。

🤖 **AI是网络犯罪的强大赋能者:** 人工智能,尤其是生成式模型,极大地降低了发动复杂网络攻击的技术门槛。它们能够生成逼真的文本、模仿语音,甚至自动化地组合利用漏洞,使得原本需要高度专业知识的攻击变得触手可及,导致网络犯罪的“民主化”和成本骤降。

📈 **网络犯罪产业化与AI驱动的演变:** 文章揭示了网络犯罪已高度产业化,形成了“服务型犯罪”(CaaS)模式,特别是“服务型勒索软件”(RaaS)。AI的介入进一步加速了这一进程,使得攻击者能够快速获取并部署AI驱动的工具,进行超个性化的网络钓鱼、制造逼真的深度伪造,并通过自动化系统执行攻击,甚至实现“五重勒索”等更复杂的敲诈手段。

🛡️ **AI驱动的防御策略与监管挑战:** 面对AI增强的网络威胁,防御也需借助AI的力量,如利用AI进行威胁检测、分析日志和识别深度伪造。然而,文章也指出,当前防御主要聚焦于技术层面,而忽视了对进攻性AI的源头管控。作者呼吁借鉴管制麻醉品和爆炸物的模式,对能够大规模执行扫描、利用漏洞或制造深度伪造的AI能力进行严格监管和许可,以从根本上遏制犯罪供应。

🌐 **强化基础防御与跨界合作的重要性:** 尽管AI带来了新的挑战,但文章强调,坚实的基础网络安全措施,如减少攻击面、实施零信任架构、确保离线备份以及加强身份验证(如MFA),仍然至关重要。此外,公私合作、情报共享以及借鉴NIST AI风险管理框架等,对于有效打击AI驱动的网络犯罪生态系统也至关重要。

AI and the Democratization of Cybercrime
DOI: 10.1145/3760249
https://bit.ly/3HnXYbB

Artificial intelligence (AI) has become one of the most potent force multipliers the criminal underground has ever seen. Generative models that write immaculate prose, mimic voices, and chain exploits together have lowered the cost of sophisticated attacks to almost nothing.

This isn’t news. Last year, Jen Easterly, former Director of the U.S. Cybersecurity and Infrastructure Security Agency (CISA), warned that AI “will exacerbate the threat of cyberattacks [by making] people who are less sophisticated actually better at doing some of the things they want to do.”

The truth of that warning is already visible. The first quarter of 2025 saw an unprecedented 126% surge in ransomware incidents. Since then, there’s been a spree of high-impact attacks against high-profile brands. British retail institutions, global brands, major logistics operators, and more have all been hit by highly sophisticated attacks.

Ransomware, phishing, and deepfakes have merged into a low-barrier ecosystem where a cloud-hosted toolkit, a stolen credential, and a crypto wallet now suffice to run an international extortion ring.

This post peels back the mechanics and economics of that new criminal frontier and offers actionable insights for defense.

The Industrialization of Cybercrime: From CaaS to RaaS

Cybercrime-as-a-Service (CaaS) mirrors the legitimate SaaS market. Malware builders, phishing kits, botnets, and initial-access brokers are sold on dark-web storefronts that accept crypto and even display customer reviews.

The flagship product is Ransomware-as-a-Service (RaaS): core developers maintain the payload, leak-site, and payment gateway, while thousands of ‘affiliates’ conduct intrusions and negotiations. Payouts resemble ride-hailing splits, typically 70% to the affiliate and 30% to the platform, and affiliates can onboard in minutes.

RaaS outfits today look like midsize SaaS firms. They publish changelogs, run 24/7 ticket desks, and offer live chat to guide victims through buying cryptocurrency. Double-extortion (encrypt and leak) is baseline, with options for triple-extortion to pile harassment or DDoS on top. FunkSec, an AI-enabled crew first seen in late 2024, even offered “quintuple” extortion tiers that layer stock-price manipulation over leaks and DDoS.

Top RaaS brands draw more than 15 million page views every month as victims, journalists, and even investors monitor newly posted archives. Operators monetize that audience with “marketing bundles”: Photoshop templates for branded ransom notes, boiler-plates that cite GDPR fines, and even customer-experience surveys that let victims rate the service.

AI: The Ultimate Democratizer of Crimeware

Dark LLMs for Everyone  Cheap, off-the-shelf language models are erasing the technical hurdles. FraudGPT and WormGPT subscriptions start at roughly $200 per month, promising ‘undetectable’ malware, flawless spear-phishing prose, and step-by-step exploit guidance.

An aspiring criminal no longer needs the technical knowledge to tweak GitHub proof-of-concepts. They paste a prompt such as ‘Write a PowerShell loader that evades EDR’ and receive usable code in seconds.

Hyper-Personalized Phishing  Large language models (LLMs) fine-tuned on breached CRM data generate emails indistinguishable from genuine internal memos, complete with corporate jargon and local idiom. Large parts of 2025’s attack surge can be attributed to these AI-crafted lures, leading to an average of 275 ransomware attempts every day.

Deepfakes and Voice Cloning  Synthetic media eliminates the tells that once betrayed social-engineering scams. In early 2024, a finance clerk at U.K. engineering firm Arup wired $25 million after joining a video call populated entirely by AI-generated replicas of senior executives. The same year, Long Island police logged more than $126 million in losses from voice-clone ‘grandchild in trouble’ scams that harvest seconds of TikTok audio to impersonate loved ones.

Autonomy at Machine Speed  Researchers pushed the envelope further with ReaperAI and AutoAttacker, proof-of-concept ‘agentic’ systems that chain LLM reasoning with vulnerability scanners and exploit libraries. In controlled tests, they breached outdated Web servers, deployed ransomware, and negotiated payment over Tor, without human input once launched.

Fully automated cyberattacks are just around the corner.

The Mechanics and Economics of the New Frontier

Why does ransomware flourish even as some victims refuse to pay? The answer is pure economics: start-up costs for a cybercriminal enterprise are minimal, often under $500, while returns can reach eight figures. Analysts project ransomware costs could top $265 billion a year by 2031, while total cybercrime damages may hit $10.5 trillion globally this year.

Dark web marketplaces have grown into one of the world’s largest shadow economies. Listings resemble Amazon product pages, complete with escrow, loyalty discounts, and 24-hour ‘customer success’ chat. Competition drives platform fees down, so developers chase scale: more affiliates, more victims, more leverage.

When one marketplace is taken down, others quickly appear to replace it. When LockBit vanished, many affiliates simply shifted to emerging brands like RansomHub. Disruption alone won’t end the business model.

Defending Against AI-Enhanced Extortion

AI as a Defensive Force-Multiplier  The same transformers that craft phishing emails can mine billions of log lines for anomalies in seconds. Managed detection and response providers say AI triage cuts investigation time by 70%.

Deepfake-detection models, behavioral analytics, and real-time sandboxing already blunt AI-enhanced attacks. However, studies have shown that trained humans remain better at spotting high-quality video deepfakes than current detectors.

Core Protective Strategies  Core defensive practice now revolves around four themes. First, reducing the attack surface through relentless automated patching. Second, assuming breach via Zero-Trust segmentation and immutable off-line backups that neuter double-extortion leverage. Third, hardening identity with universal multi-factor authentication (MFA) and phishing-resistant authentication. Finally, exercising incident-response plans with table-top and red-team drills that mirror AI-assisted adversaries.

Governance and Collaboration  Frameworks such as the NIST AI Risk Management Framework 1.0 and its 2024 Generative AI profile provide scorecards for responsible deployment. The LockBit takedown shows that public-private task forces can still starve criminal ecosystems of infrastructure and liquidity when they move quickly and in concert.

Organizations should adopt an intelligence-led mindset. Automated collection of indicators from previous incidents, enrichment with open-source feeds, and sharing through platforms like Malware Information Sharing Platforms (MISPs) or industry Information Sharing and Analysis Centers (ISACs) compresses the time available to attackers. When that data feeds back into detection models, every victim becomes a training set for community defense and a virtuous learning loop.

Regulating Offensive AI: Treat It as a Controlled Substance

We keep lecturing companies about patch cadences and zero-trust diagrams while ignoring the tap that fills the bucket. Yes, every organization should harden MFA and segment networks, but let’s be honest: no patching policy can outrun a world where fully weaponized models are sold as casually as Spotify vouchers. I feel we’re placing the entire defensive burden on victims, so we’re managing symptoms, not the disease.

It’s time to move upstream and license offensive-AI capabilities the way we already license explosives, narcotics, and zero-day exports. Any model that can autonomously scan, exploit, or deepfake at scale should sit behind the regulatory equivalent of a locked cabinet, complete with audited access logs, financial surety, and criminal liability for willful leaks. Cloud providers and model builders love to invoke “dual-use,” but dual-use is exactly why controlled-substance laws exist: society decided that convenience doesn’t trump harm. Apply the same logic here, and we choke supply instead of eternally mopping the floor.

The Ongoing AI Arms Race

AI hasn’t invented new crime; it has franchised it. Today, a teenager with a crypto wallet can spin up FraudGPT on rented GPUs and launch an extortion campaign that once required a nation-state toolkit. Yet we keep treating defense as an endless game of speed-patching while the real accelerant—unfettered access to weapons-grade models—flows freely. If we can license weapons and cars, we can license autonomous exploit-chains and deepfake engines, too. Until regulators lock those capabilities behind audited cabinets, businesses will keep playing batter against a pitching machine on rapid fire.

That doesn’t let boards off the hook, because resilient basics still matter, but it does rebalance the battlefield. The next phase of this digital cold war demands a dual strategy: adaptive AI and zero-trust on the front line, plus upstream export controls that choke supply. Every defensive breakthrough will still feed offensive models, yet every license, access log, and legal deterrent hacks at the root instead of trimming branches.

The finish line remains out of sight, but combining disciplined fundamentals with controlled-substance rules gives us a fighting chance at resilient survival.

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人工智能 网络犯罪 AI Cybercrime Ransomware Phishing Deepfakes Cybersecurity RaaS CaaS AI Risk Management
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