{6c0944d8-b49f-4f69-8ce8-524e562a2250}gw.sys

Zebar

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {6c0944d8-b49f-4f69-8ce8-524e562a2250}gw.sys by Zebar has been detected as adware by 5 anti-malware scanners. It runs as a Windows kernel mode device driver named “{6c0944d8-b49f-4f69-8ce8-524e562a2250}Gw”. 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.
Remove {6c0944d8-b49f-4f69-8ce8-524e562a2250}gw.sys - Powered by Reason Core Security
Publisher:
StdLib  (signed by Zebar)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
f8d2c8a69f71bd16b48e2765067e1392

SHA-1:
4d445181c075696caf8cba239dc016a57425f99b

SHA-256:
f1eda6203639b8a4f27682a4c9a3ac4c405a5a7a17fdec0fee42785ed9004138

Scanner detections:
5 / 68

Status:
Adware

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

Analysis date:
12/4/2016 1:00:03 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Zebrar
2015.0.3447

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14610

Reason Heuristics
PUP.Zebar.l
14.6.10.17

VIPRE Antivirus
Threat.4150696
30086

Remove {6c0944d8-b49f-4f69-8ce8-524e562a2250}gw.sys - Powered by Reason Core Security
File size:
51.7 KB (52,920 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\{6c0944d8-b49f-4f69-8ce8-524e562a2250}gw.sys

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
3/9/2014 7:00:00 PM

Valid to:
3/10/2015 6:59:59 PM

Subject:
CN=Zebar, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Zebar, 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:
443A7E0E2025885A74F146162C4BEE38

File PE Metadata
Compilation timestamp:
1/30/2014 7:45:28 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:8IsHpnKHCBSqUPJHKQpkJxpKwT2bcWiJmOtX3g2rp3lnbo8N:rsHRKHLJqQpkYwTsiTtXxtse

Entry address:
0xC03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 62, 50, FF, FF, CC, CC, 74, C1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BC, C4, 00, 00, C0, A0, 00, 00, B4, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 12, C5, 00, 00, 00, A0, 00, 00, EC, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, AE, C8, 00, 00, 38, A0, 00, 00, C4, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A6, C9, 00, 00, 10, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, EA, C4, 00, 00, FE, C4, 00, 00, D6, C4...
 
[+]

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{6c0944d8-b49f-4f69-8ce8-524e562a2250}Gw

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


Remove {6c0944d8-b49f-4f69-8ce8-524e562a2250}gw.sys - Powered by Reason Core Security