home

{55dce8ba-9dec-4013-937e-adbf9317d990}gt64.sys

Deal Keeper

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {55dce8ba-9dec-4013-937e-adbf9317d990}gt64.sys by Deal Keeper 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 64-bit kernel mode device driver named “{55dce8ba-9dec-4013-937e-adbf9317d990}Gt64”.
Publisher:
StdLib  (signed by Deal Keeper)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
b1b1d6e4773f5e1130670aa703458eab

SHA-1:
ed09805321ec98d1eb53474bfb3c878a1eeb0f5e

SHA-256:
0fc4bed564846f091510db6a842ef69c6ec56ffdaddfe3f3378ccf18b64c4bbb

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 12:24:46 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.2.20.20

File size:
58.6 KB (60,048 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{55dce8ba-9dec-4013-937e-adbf9317d990}gt64.sys

Digital Signature
Signed by:
Deal Keeper

Authority:
VeriSign, Inc.

Valid from:
7/21/2014 7:00:00 PM

Valid to:
5/12/2015 6:59:59 PM

Subject:
CN=Deal Keeper, O=Deal Keeper, 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:
2D5A91A625D274EE29AFF6E5DC4A33AC

File PE Metadata
Compilation timestamp:
1/30/2014 6:46:41 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

Entry address:
0x10064

Entry point:
48, 83, EC, 28, 4C, 8B, C2, 4C, 8B, C9, E8, 95, FF, FF, FF, 49, 8B, D0, 49, 8B, C9, 48, 83, C4, 28, E9, 8E, B3, FF, FF, CC, CC, D0, 00, 01, 00, 00, 00, 00, 00, 00, 00, 00, 00, 40, 05, 01, 00, 10, C0, 00, 00, C0, 00, 01, 00, 00, 00, 00, 00, 00, 00, 00, 00, 62, 05, 01, 00, 00, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 4E, 05, 01, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 3C, 02, 01, 00, 00, 00, 00, 00, 50, 02, 01, 00, 00, 00, 00, 00, 6E, 02, 01, 00...
 
[+]

Entropy:
6.3998

Code size:
45 KB (46,080 bytes)

Driver
Display name:
{55dce8ba-9dec-4013-937e-adbf9317d990}Gt64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.