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{ec3b464a-97da-43ec-b8d8-6d9d0bc1b9c5}w.sys

Cantataweb

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {ec3b464a-97da-43ec-b8d8-6d9d0bc1b9c5}w.sys by Cantataweb 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 “{ec3b464a-97da-43ec-b8d8-6d9d0bc1b9c5}w”.
Publisher:
StdLib  (signed by Cantataweb)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
29fcc33ec886f412a736f34353a368af

SHA-1:
0486e4fee8afaf45136f330698baeb1855f7a191

SHA-256:
84899e577358e4378f1fe0e9f92703b30551ba8b53ed5ccf9aec825553e0cfec

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:
12/25/2024 2:11:48 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.2.14.21

File size:
42.1 KB (43,096 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{ec3b464a-97da-43ec-b8d8-6d9d0bc1b9c5}w.sys

Digital Signature
Signed by:
Cantataweb

Authority:
DigiCert Inc

Valid from:
6/8/2014 9:00:00 PM

Valid to:
6/17/2015 9:00:00 AM

Subject:
CN=Cantataweb, O=Cantataweb, L=Santa Monica, S=California, C=US

Issuer:
CN=DigiCert Assured ID Code Signing CA-1, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
013BE12950E38B1ABDBF9C4FCB5C264F

File PE Metadata
Compilation timestamp:
9/22/2014 4:01:51 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

Entry address:
0xA03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 20, 70, FF, FF, CC, CC, 94, A1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, CE, A4, 00, 00, E0, 80, 00, 00, B4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 24, A5, 00, 00, 00, 80, 00, 00, EC, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A4, A9, 00, 00, 38, 80, 00, 00, C4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 9C, AA, 00, 00, 10, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, FC, A4, 00, 00, 10, A5, 00, 00, E8, A4...
 
[+]

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{ec3b464a-97da-43ec-b8d8-6d9d0bc1b9c5}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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