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{bdd8d838-7d34-42df-8fce-f69963a9341a}gw64.sys

techgile

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {bdd8d838-7d34-42df-8fce-f69963a9341a}gw64.sys by techgile has been detected as adware by 23 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{bdd8d838-7d34-42df-8fce-f69963a9341a}Gw64”. 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 techgile)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
f79ae1813e5297f35ad5ea9e680c5b1d

SHA-1:
65af4a6307d7faa2a643eea2ba918a08eed9fcc2

SHA-256:
6be07062cf712ed9622687c6987a78ea86479da4d3530169b94864bd0b06b09d

Scanner detections:
23 / 68

Status:
Adware

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

Analysis date:
4/19/2024 10:16:40 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.CH
6764508

Agnitum Outpost
Riskware.Agent
7.1.1

Avira AntiVirus
Adware/BrowseFox.apr
7.11.214.34

AVG
Generic
2016.0.3179

Bitdefender
Adware.SwiftBrowse.CH
1.0.20.325

Clam AntiVirus
Win.Adware.Swiftbrowse-497
0.98/21511

Dr.Web
hacktool program Tool.NetFilter.313
9.0.1.05190

Emsisoft Anti-Malware
Adware.SwiftBrowse.CH
9.0.0.4799

ESET NOD32
Win64/NetFilter.A potentially unsafe application
7.0.302.0

F-Prot
W64/A-59c9c70a
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.CH
5.13.68

G Data
Adware.SwiftBrowse.CH
15.3.25

herdProtect (fuzzy)
variant of {2ac4981b-bb31-49d4-9706-b07c78762883}gw64.sys (Adware)
2015.6.12.16

K7 AntiVirus
Adware
13.200.15176

MicroWorld eScan
Adware.SwiftBrowse.CH
16.0.0.195

Norman
Adware.SwiftBrowse.CH
02.01.2015 13:58:24

nProtect
Adware.SwiftBrowse.CH
15.03.05.01

Qihoo 360 Security
Win32/Virus.Adware.73c
1.0.0.1015

Reason Heuristics
PUP.Yontoo
15.3.6.0

Trend Micro House Call
HS_BROWSEFOX.SM
7.2.65

Trend Micro
HS_BROWSEFOX.SM
10.465.06

VIPRE Antivirus
Threat.4150696
37788

Zillya! Antivirus
Adware.Yotoon.Win64.14
2.0.0.2089

File size:
47.6 KB (48,784 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{bdd8d838-7d34-42df-8fce-f69963a9341a}gw64.sys

Digital Signature
Signed by:
techgile

Authority:
VeriSign, Inc.

Valid from:
9/3/2014 8:00:00 PM

Valid to:
9/4/2015 7:59:59 PM

Subject:
CN=techgile, O=techgile, 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:
73F8CC58517F3D5D8C50DFEA9B1C4816

File PE Metadata
Compilation timestamp:
2/16/2015 11:47:18 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:lM7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3UrigNn:WFID6EGnLA8AFJTNEVmDNgx

Entry address:
0xC064

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, E2, 50, FF, FF, CC, CC, 78, C2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 54, C6, 00, 00, A0, 91, 00, 00, 28, C1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, DA, CA, 00, 00, 50, 90, 00, 00, D8, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, D2, CB, 00, 00, 00, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, CB, 00, 00, 00, 00, 00, 00, A2, CB, 00, 00...
 
[+]

Entropy:
6.3930

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{bdd8d838-7d34-42df-8fce-f69963a9341a}Gw64

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.