Trojan.PSW.Agent.XA targets Windows systems with password-stealing behavior
Trojan.PSW.Agent.XA has been identified as a password-stealing threat, and the analysis material marks it with no signature status. The sample set tied to this family shows a Windows 64-bit executable with no version info, which places it in the category of native malware built to run directly on affected systems.
The detection details also point to a small but concrete sample record: one known file has the MD5 hash f3f6ecdc53a80bcf1de02d40cc2ce5b5, SHA1 0a8112351ee866cf82b6d90c9a4f0b389a147920, and SHA256 3003F3BE028A920D61B843188CB8AD8E0DB3859FCF85C23A5D559C104E23B26E. Its reported file size is 1.42 MB, and the sample is described as a console application rather than a .NET program.
The threat matters because password-stealing malware aims at credentials, and credentials often open access to email, cloud services, saved browser sessions, and other accounts that users rely on every day. The analysis report does not name a specific delivery method, but it does show a family profile that is meant to execute locally, operate quietly, and interact with the system at a low level.
That low-level profile becomes clearer in the block and API data. EnigmaSoft reports 1,207 total blocks, with 101 potentially malicious blocks, 1,103 whitelisted blocks, and 3 unknown blocks. The Windows API list includes NtDeviceIoControlFile, NtFreeVirtualMemory, NtQuerySecurityAttributesToken, NtQueryVolumeInformationFile, NtSetEvent, NtSetInformationVirtualMemory, NtSetInformationWorkerFactory, NtTestAlert, and NtWriteFile, which indicates direct system interaction rather than simple scripted behavior.
Those calls are relevant because credential theft tools often need access to files, memory, tokens, and security attributes while they collect or move data. The report also notes that Windows API usage analysis can help identify malicious activity such as keylogging, privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation. In this case, the family is being discussed in that investigative frame, not as an ordinary application.
The PE attributes add more context. The sample lacks a Rich header, exports table, resources, and security information, and it is not packed. It is also not set as a DLL and is identified as a native executable image, which means the file is structured like a self-contained program rather than a library or document payload.
The broader impact falls on Windows users who encounter the sample on an unprotected system or who may already have run it. Because the report labels the family as a Trojan.PSW threat and notes no signature, the practical concern is stolen passwords rather than visible system damage. That kind of threat can remain useful to an attacker after initial infection, since account access can persist beyond the first execution.
Possible steps to reduce risk from Trojan.PSW.Agent.XA:
- Run a full malware scan on the affected Windows system.
- Remove any file that matches the reported sample hashes.
- Inspect recently downloaded executables and unknown console programs.
- Check for unfamiliar processes that write files or touch system memory.
- Review browser and account passwords from a clean device.
- Change important passwords after the threat is removed.
- Watch for signs of account access you do not recognize.
- Update and keep your security software active on the device.
Source: enigmasoftware.com
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