home

{9d5747ee-0448-4681-8337-1555de75a3b6}gt64.sys

sizlsearch

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {9d5747ee-0448-4681-8337-1555de75a3b6}gt64.sys by sizlsearch has been detected as adware by 9 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{9d5747ee-0448-4681-8337-1555de75a3b6}Gt64”. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
StdLib  (signed by sizlsearch)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
7fc13e488b3f3b1c772cfc91778d189d

SHA-1:
cd3bbc3eef4e37f4ebeee651fb3c3fc4c240a639

SHA-256:
2404c1547c3449e9faae78004a554d906cdcfcca9dd1aeb70c3bc2896da20e4b

Scanner detections:
9 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/19/2024 11:27:56 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Agent
7.1.1

AVG
Slizearch
2015.0.3313

Clam AntiVirus
Win.Adware.Swiftbrowse-8
0.98/21411

Dr.Web
Trojan.BPlug.123
9.0.1.05190

ESET NOD32
Win64/BrowseFox.AZ (variant)
8.10604

F-Prot
W64/A-7883d091
v6.4.7.1.166

Reason Heuristics
PUP.sizlsearch.n
14.10.22.15

VIPRE Antivirus
Threat.4150696
33706

Zillya! Antivirus
Adware.Yotoon.Win64.9
2.0.0.1964

File size:
58.7 KB (60,096 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\{9d5747ee-0448-4681-8337-1555de75a3b6}gt64.sys

Digital Signature
Signed by:
sizlsearch

Authority:
VeriSign, Inc.

Valid from:
11/13/2013 2:00:00 PM

Valid to:
11/14/2014 1:59:59 PM

Subject:
CN=sizlsearch, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=sizlsearch, 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:
14A03B7644CA6A74D050BBD6188EAA95

File PE Metadata
Compilation timestamp:
1/30/2014 2:46:41 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
1536:dA0Ep72J9xc1JUzUPU/qnIy4fNwQKZzrtW+DGvj:O0G72J8YvqIy4fNwQKNrtNDGb

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:
6.4027

Code size:
45 KB (46,080 bytes)

Driver
Display name:
{9d5747ee-0448-4681-8337-1555de75a3b6}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.