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{91975f83-f39c-43cf-aad4-0b3396b0f6db}w.sys

Knowledge Gains

The file {91975f83-f39c-43cf-aad4-0b3396b0f6db}w.sys by Knowledge Gains has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a Windows kernel mode device driver named “{91975f83-f39c-43cf-aad4-0b3396b0f6db}w”.
Publisher:
StdLib  (signed by Knowledge Gains)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
8a5600d05fa1489baed1b96a73ca7ced

SHA-1:
b4df332d8e3de0fb495e8ceda227640754925b64

SHA-256:
c7fa04144c425a95caba77017442d8476f19770854a0e8cd737c3ff6f68e3ee4

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
2/25/2025 9:56:34 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.11.13

File size:
42.1 KB (43,160 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{91975f83-f39c-43cf-aad4-0b3396b0f6db}w.sys

Digital Signature
Signed by:
Knowledge Gains

Authority:
VeriSign, Inc.

Valid from:
1/15/2015 7:00:00 AM

Valid to:
1/16/2016 6:59:59 AM

Subject:
CN=Knowledge Gains, O=Knowledge Gains, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
41A7E1BB4081A36A8282DCAE1B2A3A14

File PE Metadata
Compilation timestamp:
12/7/2015 7:29:52 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

Entry address:
0xA03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 20, 70, FF, FF, CC, CC, 94, A1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, CE, A4, 00, 00, E0, 80, 00, 00, B4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 24, A5, 00, 00, 00, 80, 00, 00, EC, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A4, A9, 00, 00, 38, 80, 00, 00, C4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 9C, AA, 00, 00, 10, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, FC, A4, 00, 00, 10, A5, 00, 00, E8, A4...
 
[+]

Entropy:
6.6155

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{91975f83-f39c-43cf-aad4-0b3396b0f6db}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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