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{45bce296-b364-4c32-bc4c-53ef7a8c516d}gt.sys

Bellaphant

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {45bce296-b364-4c32-bc4c-53ef7a8c516d}gt.sys by Bellaphant 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 “{45bce296-b364-4c32-bc4c-53ef7a8c516d}Gt”.
Publisher:
StdLib  (signed by Bellaphant)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
eb3ca0a835c3cfbfe3cbc7b341c7971b

SHA-1:
a147817160e2f0d60374cce51d5168055e26d5b0

SHA-256:
c256f18f0ad8411059b872e2444e8e7aa4ab4662ebf201cdc9d44886db79b03c

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:
11/23/2024 12:16:16 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
16.9.7.9

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\{45bce296-b364-4c32-bc4c-53ef7a8c516d}gt.sys

Digital Signature
Signed by:
Bellaphant

Authority:
VeriSign, Inc.

Valid from:
2/3/2015 7:00:00 PM

Valid to:
3/5/2016 6:59:59 PM

Subject:
CN=Bellaphant, O=Bellaphant, 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:
1436437D1EF58AC8B6136958BFF51A68

File PE Metadata
Compilation timestamp:
2/18/2015 7:31:02 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:vo6LohZZMITF7zKLV3fXoKKxaFtFkW4VIWPLqvH9EQZLN+p60CeB0:vo6+pT1UvYDEHFV4nPe/kpvCeq

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:
6.3457

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{45bce296-b364-4c32-bc4c-53ef7a8c516d}Gt

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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