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PUA:Win32/KeyGen malicious file

Published May 1, 2024 PUA category 2 min read
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What to verify before removal

This pua entry is most useful when PUA:Win32/KeyGen malicious file appears after a software bundle, browser extension install, or unwanted system utility. Treat it as moderate risk until you confirm whether the alert is tied to browser settings, scheduled tasks, or a persistent updater.

Start by comparing the local file name with FD1F5DA2E520F10B4A8A.mlw, then review the behavior notes for bundled installers, browser policy changes, notification abuse, and unwanted startup entries. This helps separate a matching detection from a different file that only shares a similar alert name.

Observed file
FD1F5DA2E520F10B4A8A.mlw
  • Compare the suspicious file name with FD1F5DA2E520F10B4A8A.mlw.
  • Confirm the detection name matches PUA:Win32/KeyGen malicious file before removing related files.
  • Review the report for bundled installers, browser policy changes, notification abuse, and unwanted startup entries so the cleanup is based on observed behavior, not only the label.
  • Remove the unwanted app, reset affected browser settings, and check extensions before reconnecting accounts.

The PUA:Win32/KeyGen is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

What PUA:Win32/KeyGen virus can do?

  • Sample contains Overlay data
  • Unconventionial language used in binary resources: Polish
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid

How to determine PUA:Win32/KeyGen?



File Info:

name: FD1F5DA2E520F10B4A8A.mlw
path: /opt/CAPEv2/storage/binaries/612f594a21124c8c77551711c3a3491460ff32bd5e3cb91f954bbaa2a034bd72
crc32: 2D1D2755
md5: fd1f5da2e520f10b4a8ad632e1155e4c
sha1: 2b8d0786e9fb9dc87a0dceefe45112ce509eac37
sha256: 612f594a21124c8c77551711c3a3491460ff32bd5e3cb91f954bbaa2a034bd72
sha512: d1c29ba2e55d139224ed3f4de3d9017f1a5be9c567a12e1fec24a23f228b19e40a3be1ff977b2bf606f40239e20609c06593d9717c40b14d774d75d8d86d8bca
ssdeep: 6144:1hVmOAAy7NW0fhHL8H6UGHbmZfvXuA6fDYion232L2axU:1hVmOAhNWMhHZHbmZH+AqYio23U2aG
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T10A342206C15956E6D0E0A07A5B43EFFC9960E49A5CEC83150319E91FAC3A3E6CF369CC
sha3_384: 11e92f7cc96136cb783161d1daebac09949132a0aabbcbc01aaabdf78d586ab117e4d5e13f410b89fbb7e2337b92b5e7
ep_bytes: 60be000046008dbe0010faff5783cdff
timestamp: 1992-06-19 22:22:17


Version Info:

0: [No Data]

PUA:Win32/KeyGen also known as:

Bkav W32.Common.1AF5FE39
Cylance unsafe
Elastic malicious (moderate confidence)
APEX Malicious
Trapmine malicious.high.ml.score
Sophos Generic ML PUA (PUA)
SentinelOne Static AI – Suspicious PE
Antiy-AVL GrayWare/Win32.KeyGen
Kingsoft malware.kb.a.1000
Microsoft PUA:Win32/KeyGen
Rising PUA.Keygen!8.3EB (CLOUD)
MaxSecure Trojan.Malware.300983.susgen
DeepInstinct MALICIOUS

How to remove PUA:Win32/KeyGen?

Recommended second-opinion scan

Verify the infection before changing system settings

Use GridinSoft Anti-Malware to run a full scan, review detected persistence entries, and quarantine confirmed threats before restarting Windows.

Download GridinSoft Anti-Malware
  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • “Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.