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{5e1eb58a-cd04-42a5-b710-2b964d2a3d50}w.sys

SearchFoot

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {5e1eb58a-cd04-42a5-b710-2b964d2a3d50}w.sys by SearchFoot 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 “{5e1eb58a-cd04-42a5-b710-2b964d2a3d50}w”.
Publisher:
StdLib  (signed by SearchFoot)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
3011a0490070f3a43a814ec322ebb415

SHA-1:
aab8142220fa0a181acf9ed6d0160eed77d33f88

SHA-256:
3530dc3196ce1552bc436561060081cd56e6888d7522d2a0d97865dd96ccfc92

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:
4/24/2024 5:27:50 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.SearchFoot (M)
16.2.13.16

File size:
51.7 KB (52,928 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\{5e1eb58a-cd04-42a5-b710-2b964d2a3d50}w.sys

Digital Signature
Signed by:
SearchFoot

Authority:
VeriSign, Inc.

Valid from:
1/21/2014 10:00:00 PM

Valid to:
1/22/2015 9:59:59 PM

Subject:
CN=SearchFoot, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=SearchFoot, 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:
5F02DE54EB4BED008713866AAA6070E0

File PE Metadata
Compilation timestamp:
1/30/2014 10:45:28 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:pIsHpnKHCBSqUPJHKQpkJxpKwT2bcWiJmOtX3g2rp3lnL6O:msHRKHLJqQpkYwTsiTtXxtL

Entry address:
0xC03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 62, 50, FF, FF, CC, CC, 74, C1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BC, C4, 00, 00, C0, A0, 00, 00, B4, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 12, C5, 00, 00, 00, A0, 00, 00, EC, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, AE, C8, 00, 00, 38, A0, 00, 00, C4, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A6, C9, 00, 00, 10, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, EA, C4, 00, 00, FE, C4, 00, 00, D6, C4...
 
[+]

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{5e1eb58a-cd04-42a5-b710-2b964d2a3d50}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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