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{fe0d951b-f1e9-4cbc-8054-78c95ed14cc5}w.sys

Storimbo

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {fe0d951b-f1e9-4cbc-8054-78c95ed14cc5}w.sys by Storimbo 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 “{fe0d951b-f1e9-4cbc-8054-78c95ed14cc5}w”.
Publisher:
StdLib  (signed by Storimbo)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
942b22aaf4c901d3e2d14fe2b28b1a2a

SHA-1:
62910e0e01614dcd502c9c58c710c0af46edb5b1

SHA-256:
82588537602690d8d567b209a782d16d3ab66edaaf21f4e4c91f67bebcb2e49a

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:
5/13/2024 9:05:32 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.1.14.9

File size:
38.2 KB (39,096 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{fe0d951b-f1e9-4cbc-8054-78c95ed14cc5}w.sys

Digital Signature
Signed by:
Storimbo

Authority:
VeriSign, Inc.

Valid from:
11/13/2013 6:00:00 PM

Valid to:
11/14/2014 5:59:59 PM

Subject:
CN=Storimbo, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Storimbo, L=Santa Monica, 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:
1AC46D37F39AC4527AFEFF38AB955504

File PE Metadata
Compilation timestamp:
9/12/2014 6:32:59 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

Entry address:
0x903E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 20, 80, FF, FF, CC, CC, 74, 91, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, AE, 94, 00, 00, C0, 70, 00, 00, B4, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 04, 95, 00, 00, 00, 70, 00, 00, EC, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A0, 98, 00, 00, 38, 70, 00, 00, C4, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 98, 99, 00, 00, 10, 70, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, DC, 94, 00, 00, F0, 94, 00, 00, C8, 94...
 
[+]

Code size:
24.5 KB (25,088 bytes)

Driver
Display name:
{fe0d951b-f1e9-4cbc-8054-78c95ed14cc5}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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