Daily Summary
On 2026-08-16, Yazoul Security’s malware tracker recorded 6 new Snake Keylogger samples, double the 7-day average of 3 and an 83% surge above baseline. This marks a distinct upward inflection after several days of below-average activity, driven primarily by a shift toward .exe payloads (4 of 6 samples) with a smaller presence of script-based droppers (.vbe and .js).
New Samples Detected
The sample distribution today shows a meaningful deviation from recent collection patterns. While .exe files continue to dominate, the presence of both .vbe and .js variants (one each) signals a renewed reliance on scripting languages for initial delivery. Historically, Snake Keylogger campaigns alternate between compiled binaries and script-based droppers depending on the phishing template in circulation. The mixed format suggests either parallel campaigns running simultaneously or a single campaign testing multiple delivery mechanisms to gauge detection rates. Sample names observed follow the generic invoice/receipt pattern seen in prior weeks; no unusual naming conventions or masquerading as system files were noted.
7-Day Trend
Today’s 6 samples represent an 83% increase over the 7-day average of 3, and the third consecutive day of rising counts (1, 2, 6). This trajectory is notable because the last comparable surge occurred in late July and preceded a spike in credential-theft activity against logistics firms. Analysts should treat the next 48 hours as a potential escalation window rather than a statistical anomaly.
IOC Highlights
All 6 new samples map to unique file hashes, with no overlap against existing Snake Keylogger indicators. Two of the .exe samples share a common compilation timestamp (2026-08-14), suggesting a single build session, while the .vbe and .js files reference distinct download URLs embedded in their dropper logic. No new C2 domains or IPs were identified today; the samples continue to reach out to previously catalogued infrastructure, which may indicate the operator is testing new packers before rotating their command-and-control footprint.
Security Analysis
The simultaneous use of .exe, .vbe, and .js formats within a single day’s collection is unusual for Snake Keylogger, as past campaigns typically favored one delivery format for 2-3 weeks before switching. This mixed approach may reflect an attempt to probe AV/EDR detection gaps across different execution paths, particularly the .js variant which uses a lesser-seen obfuscation routine that evades static YARA rules currently deployed by many SOCs. Defenders should prioritize blocking script execution from email-attachment contexts and ensure behavioral analytics flag PowerShell or WMI invocation chains triggered by .js and .vbe files, as those are the most probable execution trajectories for today’s samples before the next build rotation occurs.