{587cb346-a3d8-4884-b39b-f0ed918b6f96}gw.sys

TowerTilt

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {587cb346-a3d8-4884-b39b-f0ed918b6f96}gw.sys by TowerTilt has been detected as adware by 9 anti-malware scanners. It runs as a Windows kernel mode device driver named “{587cb346-a3d8-4884-b39b-f0ed918b6f96}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 {587cb346-a3d8-4884-b39b-f0ed918b6f96}gw.sys - Powered by Reason Core Security
Publisher:
StdLib  (signed by TowerTilt)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
fd50bf4e6606fda36fef8e7d119b300e

SHA-1:
0aadfd5e0a8abf0f76ba016ee8a8c2a87db2b41f

SHA-256:
7360be80f822163f2b8423c8c3cd32bd47622ce6b2a5c23f4f3192bb253de12d

Scanner detections:
9 / 68

Status:
Adware

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

Analysis date:
12/8/2016 5:14:25 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Towit
2015.0.3447

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14610

Reason Heuristics
PUP.TowerTilt.l
14.6.10.20

VIPRE Antivirus
Trojan.Win32.Generic
29248

Remove {587cb346-a3d8-4884-b39b-f0ed918b6f96}gw.sys - Powered by Reason Core Security
File size:
51.7 KB (52,928 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Common path:
C:\Windows\System32\drivers\{587cb346-a3d8-4884-b39b-f0ed918b6f96}gw.sys

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
2/4/2014 9:00:00 AM

Valid to:
2/5/2015 8:59:59 AM

Subject:
CN=TowerTilt, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=TowerTilt, 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:
0DC21B60DDFB723E55B2F05376083F29

File PE Metadata
Compilation timestamp:
1/31/2014 9:45:28 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:WIsHpnKHCBSqUPJHKQpkJxpKwT2bcWiJmOtX3g2rp3lnzpX:hsHRKHLJqQpkYwTsiTtXxt9X

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:
{587cb346-a3d8-4884-b39b-f0ed918b6f96}Gw

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


Remove {587cb346-a3d8-4884-b39b-f0ed918b6f96}gw.sys - Powered by Reason Core Security