SmartApeSG Launches Okendo Reviews Supply Chain Attack
On May 14, 2026, the Zscaler ThreatLabz team identified unusually high activity associated with the threat actor SmartApeSG to deploy malware. During our examination, we discovered malicious JavaScript code embedded in a legitimate reviews widget found on numerous websites. Our analysis revealed that the affected component was the Okendo Reviews widget, a popular customer review…
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Threat Actors Use Google Ads To Target Ledger Users
In August 2026, Zscaler ThreatLabz analyzed a phishing campaign that used fraudulent Google ads to target Ledger hardware wallet users. The ads redirected users through Google Cloud Storage and Vercel to a Google Sites page containing a phishing page impersonating Ledger in an iframe. During our analysis, the Vercel redirect appeared to change every 15-20 minutes. There, a fake…
Vidar Adds Virtual Machine and Custom Stream Ciphers For String Obfuscation
Vidar is an information stealer that was first observed in 2018. Across its iterations, Vidar has continued to improve its string obfuscation to make detection and analysis more difficult by changing deobfuscation algorithms, constants, and primitives. From May through early September 2026, Zscaler ThreatLabz tracked Vidar’s string obfuscation as it evolved from basic XOR to ChaCha20,…
Operation RapidRust: APT36 Deploys RUSTYSHADE, RUSTYMOVE, PSNATCH, and BASHNATCH
In August 2026, Zscaler ThreatLabz observed new activity by the Pakistan-nexus threat actor APT36 in a campaign we’re tracking as Operation RapidRust. Since our last publication about the group’s activity in January 2026, APT36 has maintained a high operational tempo and updated their tactics, techniques, and procedures (TTPs) in continued attacks targeting government and defense…
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