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{696697c2-0537-45bd-b3da-9e80a9e05283}w.sys

fassurun

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {696697c2-0537-45bd-b3da-9e80a9e05283}w.sys by fassurun has been detected as adware 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 “{696697c2-0537-45bd-b3da-9e80a9e05283}w”.
Publisher:
StdLib  (signed by fassurun)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
8a7547e937dd2a052746a136fb2b865b

SHA-1:
dccead083617225d10fce4633f957e4f98afa1c3

SHA-256:
4a43fbd88f9b0343560f50e185ef673e96192a9657709a1462132e28dc9ac2e6

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
11/23/2024 6:39:15 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.2.9

File size:
42.2 KB (43,192 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Common path:
C:\Windows\System32\drivers\{696697c2-0537-45bd-b3da-9e80a9e05283}w.sys

Digital Signature
Signed by:
fassurun

Authority:
VeriSign, Inc.

Valid from:
8/21/2013 3:00:00 AM

Valid to:
8/21/2015 2:59:59 AM

Subject:
CN=fassurun, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=fassurun, 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:
6EA3A2D62F7379560AF4974E60282338

File PE Metadata
Compilation timestamp:
11/29/2014 10:22:48 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:
6.6141

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{696697c2-0537-45bd-b3da-9e80a9e05283}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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