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{1601c372-fdd4-4d07-81cb-8d80cd533a89}t.sys

Primary Result

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {1601c372-fdd4-4d07-81cb-8d80cd533a89}t.sys by Primary Result 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 “{1601c372-fdd4-4d07-81cb-8d80cd533a89}t”.
Publisher:
StdLib  (signed by Primary Result)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
bab9936b43ba9aa5bae8b0985e2a86ff

SHA-1:
89335a221ffe5fef8784b362cb1692a18a92b484

SHA-256:
0cdeca387f183416685e4bca27a04d8eb6ffc79369faa6964c37c15ce631656f

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:
11/30/2024 9:08:26 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.12.11

File size:
54.5 KB (55,832 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Common path:
C:\Windows\System32\drivers\{1601c372-fdd4-4d07-81cb-8d80cd533a89}t.sys

Digital Signature
Signed by:
Primary Result

Authority:
VeriSign, Inc.

Valid from:
1/15/2015 9:00:00 AM

Valid to:
1/16/2016 8:59:59 AM

Subject:
CN=Primary Result, O=Primary Result, 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:
5A8A8EB89241677A4F3C653900D6D12E

File PE Metadata
Compilation timestamp:
3/21/2015 5:04:28 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...
 
[+]

Entropy:
6.3452

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{1601c372-fdd4-4d07-81cb-8d80cd533a89}t

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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