Daily Summary
Snake Keylogger activity declined today with only 7 new samples observed, 23% below the 7-day average of 9. After a moderate surge earlier in the week, the downward trend suggests operators may be cycling campaign infrastructure or shifts in delivery volume. No new C2 servers were identified, contrasting with recent weeks where fresh infrastructure appeared regularly.
New Samples Detected
The sample set is heavily weighted toward PowerShell scripts (4 of 7), with batch files (2) and a single DLL (1) rounding out the distribution. This marks a notable departure from last week’s pattern, where executable files (.exe) accounted for over 60% of samples. The shift to script-based payloads may indicate a deliberate move to bypass static file hash detections and evade initial execution controls that permit script hosts through application whitelisting.
Distribution Methods
Based on the file type breakdown, Snake Keylogger is likely being delivered via email-based campaigns using attached .ps1 and .bat files disguised as invoices or shipping notifications. The presence of a single .dll suggests some manual deployment or lateral movement scenarios, but script-based delivery dominates, often relying on user double-click execution to trigger the infection chain.
Detection Rate
Current detection levels for these script-based samples appear moderate, with preliminary scanning showing 3 of 7 samples flagged by at least two major AV engines. The PowerShell variants may be evading signature-based detection by using obfuscation techniques common in recent phishing kits - analysts should prioritize behavioral detection rules for PowerShell script execution with suspicious parameters.
C2 Infrastructure
No new C2 servers were observed today, a break from the average introduction of 1-2 new servers per day over the past week. This may signal that existing infrastructure is still operational and sufficient for current operations, or that operators are pausing while assessing detection rates against recent changes.
7-Day Trend
The 7-day average of 9 samples, combined with today’s decline, suggests Snake Keylogger activity is cooling from a mid-week peak of 14 samples on April 29. The volume remains within the moderate range but shows no signs of an imminent resurgence.
Security Analysis
The shift from executable to script-based payloads is a tactical adaptation likely aimed at bypassing endpoint protection that blocks unknown executables. Notably, no .vbs or .js files were observed, indicating operators are consolidating around PowerShell for compatibility with modern Windows environments. Defensive teams should implement PowerShell logging and restrict execution policy to signed scripts, while monitoring for process creation events launching powershell.exe with encoded commands or direct string execution.