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{7a11bc7a-fa65-4d5a-ade4-5a0d20eea01d}t.sys

matinooch

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {7a11bc7a-fa65-4d5a-ade4-5a0d20eea01d}t.sys by matinooch 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 “{7a11bc7a-fa65-4d5a-ade4-5a0d20eea01d}t”.
Publisher:
StdLib  (signed by matinooch)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
b3060b3d51fd4e5c32b7b5f65963412b

SHA-1:
8741bc4a6512376051f797246c1640331415a1ee

SHA-256:
12f51ef3bab620b1fc164f1dcff86df88d092db27e9def17dbea6c21c75f408a

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:
12/24/2024 1:04:14 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.11.21

File size:
54.5 KB (55,824 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\{7a11bc7a-fa65-4d5a-ade4-5a0d20eea01d}t.sys

Digital Signature
Signed by:
matinooch

Authority:
VeriSign, Inc.

Valid from:
9/2/2014 2:00:00 AM

Valid to:
9/3/2015 1:59:59 AM

Subject:
CN=matinooch, O=matinooch, 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:
5F6686B82CD125EC971480A26348C35D

File PE Metadata
Compilation timestamp:
2/26/2015 4:06:59 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

Entry address:
0xA9BE

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 2A, E4, FF, FF, CC, CC, 34, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 04, AE, 00, 00, 94, 93, 00, 00, 20, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 3A, AE, 00, 00, 80, 93, 00, 00, 2C, AA, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 56, AE, 00, 00, 8C, 93, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 26, AE, 00, 00, 12, AE, 00, 00, 00, 00, 00, 00, 42, AE, 00, 00, 00, 00, 00, 00, 2C, AB, 00, 00, 44, AB, 00, 00, 56, AB...
 
[+]

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{7a11bc7a-fa65-4d5a-ade4-5a0d20eea01d}t

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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