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{7e865864-f507-4b18-9373-7371440e9f7e}w.sys

BeatTool

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {7e865864-f507-4b18-9373-7371440e9f7e}w.sys by BeatTool 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 “{7e865864-f507-4b18-9373-7371440e9f7e}w”.
Publisher:
StdLib  (signed by BeatTool)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
6034794e66a9c28a674020c54a52c670

SHA-1:
e5c0c4b2ea523a766a5f82f0a5b0a11ee5d2cad1

SHA-256:
338fdbaf2a517b7673214b731eb7d6779a514e7581bba3c1f3e1a84fc1b7dc05

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:
4/25/2024 7:55:32 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.BeatTool (M)
16.2.10.19

File size:
51.7 KB (52,920 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\{7e865864-f507-4b18-9373-7371440e9f7e}w.sys

Digital Signature
Signed by:
BeatTool

Authority:
VeriSign, Inc.

Valid from:
1/11/2014 9:00:00 PM

Valid to:
1/12/2015 8:59:59 PM

Subject:
CN=BeatTool, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=BeatTool, 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:
5A07B7666FDB1CEB67AD677224C30BCB

File PE Metadata
Compilation timestamp:
1/30/2014 9:45:28 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:wIsHpnKHCBSqUPJHKQpkJxpKwT2bcWiJmOtX3g2rp3lnTCG:HsHRKHLJqQpkYwTsiTtXxt+G

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:
{7e865864-f507-4b18-9373-7371440e9f7e}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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