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Unknown Logger is a Windows credential-stealing malware with keylogging and host-profiling functionality. Reported capabilities include harvesting usernames and passwords saved in web browsers, recording keystrokes, collecting local user-account information such as the victim username, and gathering network-identifying information including the victim system’s IP address. It also includes defense-evasion behavior through disabling or terminating security products, with references to interference against common antivirus and anti-malware tools. The observed feature set aligns most closely with commodity infostealer activity focused on credential access and victim reconnaissance, with additional surveillance via keylogging.
Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.
10 distinct techniques documented for this family, organized by ATT&CK tactic.
The content is a catalog of malware families and threat actors that 'can perform keylogging,' 'log keystrokes,' 'capture keystrokes,' or use 'keylogger' modules/tools.
Agent Tesla can gather credentials from a number of browsers... APT33 has used a variety of publicly available tools like LaZagne to gather credentials... TrickBot can obtain passwords stored in files from web browsers such as Chrome, Firefox, Internet Explorer, and Microsoft Edge... SELECT action_url, username_value, password_value FROM logins; CryptUnprotectData
Agent Tesla can gather credentials from a number of browsers... APT3 has used tools to dump passwords from browsers... APT41 used BrowserGhost, a tool designed to obtain credentials from browsers, to retrieve information from password stores... TrickBot can obtain passwords stored in files from web browsers such as Chrome, Firefox, Internet Explorer, and Microsoft Edge
AdFind can extract subnet information from Active Directory; actors used ipconfig /all, netsh.exe, ifconfig, arp, route, nbtstat, and related APIs/commands to gather IP, MAC, DNS, DHCP, gateway, proxy, routing, ARP, and adapter information.
The content repeatedly describes malware and threat actors collecting the username, identifying the current user, enumerating logged-on users, or running commands such as whoami, query user, and quser to determine user context on compromised systems.
The content repeatedly describes malware and threat actors collecting OS version, computer name, architecture, CPU, memory, disk, BIOS, language, and other host details; examples include use of commands such as ver, systeminfo, hostname, uname -m, and WMI to gather host information.
The content repeatedly describes threat actors and malware disabling, stopping, uninstalling, or modifying antivirus, EDR, Windows Defender, AMSI, logging, and other security controls.
Examples include 'Aquatic Panda has attempted to stop endpoint detection and response (EDR) tools', 'BlackByte disabled security tools such as Windows Defender', 'Scattered Spider has uninstalled and disabled security tools', and many malware families terminating AV/EDR processes or services.
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Keylogger/malware that can obtain information about victim usernames.
Obtains victim IP address information.
Logger/stealer malware that obtains the victim's IP address.
Obtains information about victim usernames.
Match every observed IP, domain, and hash against your live telemetry.
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.