WINGHOOK
WINGHOOK is a Linux/Unix keylogger malware family identified by Mandiant during investigations into UNC2891 activity. It is described as a shared library (.so) that hooks the read and fgets functions to capture input on Linux and Unix-based operating systems. Captured keystroke data is stored in an encoded format under /var/tmp/ using filenames beginning with .zmanDw. Mandiant also identified WINGCRACK as a companion utility used to decode and display WINGHOOK’s encoded log files; the malware author appears to refer to these encoded keylog files as “schwing” files. Reporting also associates WINGHOOK with UNC2891’s broader toolkit used in intrusions targeting ATM switching and related infrastructure, alongside other custom malware such as CAKETAP, SLAPSTICK, TINYSHELL, and log-cleaning utilities including LOGBLEACH/MIGLOGCLEANER.
Hunt this family in your stack
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Groups observed using it
1 distinct threat actor attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.
Techniques & procedures
4 distinct techniques documented for this family, organized by ATT&CK tactic.
Recent activity
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
The version that knows your environment.
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Named campaigns wielding this family, with evidence pinned to each claim.
CVEs this family uses for access and lateral movement.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Every documented technique, ranked by evidence weight.
Reddit, Mastodon, and CTI community discussion around this family.