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"Blank Slate" Campaign Takes Advantage of Hosting Providers to Spread Ransomware

Unit 42 profiles the Blank Slate malspam campaign: blank emails with double-zipped attachments delivering Cerber ransomware while cycling abused hosting provider domains.

The Blank Slate campaign sends empty emails containing double-zipped archives with macro-enabled Word documents or JavaScript files that launch PowerShell to download ransomware, primarily Cerber, and occasionally Sage 2.0 or Locky. Unit 42 observed 555 campaign domains over seven months, with actors repeatedly registering new domains and cycling abuse of legitimate hosting providers after takedowns. In a five-day January-February 2017 window, at least eight domains across seven IP addresses were observed hosting Cerber payloads.

Palo Alto Unit 42 · 29d agoThreat actor in the wild1

[AINews] 10% worse, 100x cheaper, 10000x faster: Why Simulation is taking over

Latent Space argues AI training pipeline stages—rewards, data, teachers, curricula, environments—are flipping from human-made to model-made simulation.

Latent Space's AINews essay traces how each component of AI training has turned synthetic since 2022: reward models (InstructGPT, RLAIF), synthetic pretraining data (Microsoft Phi, NVIDIA Nemotron-4 340B), model teachers (Alpaca, DeepSeek-R1 distillation), and self-generated curricula (Self-Rewarding Language Models, SPIN). In 2026 it highlights Karpathy's autoresearch loop—700 experiments yielding 20 kept improvements, cutting GPT-2 training time from 2.02 to 1.80 hours—and Z.ai's GLM-5.3 fully synthetic RL environment, judging, and verification stack. It frames these shifts as 'simulation': 10% worse but 100x cheaper and 10,000x faster than human equivalents.

Latent Space · 25d agoAI industry

Crooks Are Buying Your Expired Domains and Using Them to Deliver Malware

Infoblox finds dropcatch expired domains fuel malware delivery and C2, with actor Sable Squirrel spending ~$7M on 10,000+ domains.

Infoblox Threat Intel reports that in H1 2026 dropcatch (re-registered expired) domains made up nearly 20% of all new registrations, about 65,000 per day, inheriting reputation and traffic that attackers exploit. Threat actor Sable Squirrel spent nearly $7 million on 10,000+ expired domains, running Vietnamese, Korean, Japanese and Australian streaming platforms (Xoilac, Cakhia, 90phut) that double as C2 servers for Quasar RAT, AsyncRAT, DCRat and Remcos RAT. Scavenger actors like Shady Squirrel acquire previously compromised domains and feed inherited traffic to SocGholish and tech support scam networks.

Security Affairs · Aug 16, 2026Threat actor