{b9a19c25-a741-47e5-91a2-0b62bef307ff}w64.sys

RightSurf

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {b9a19c25-a741-47e5-91a2-0b62bef307ff}w64.sys by RightSurf has been detected as adware by 13 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{b9a19c25-a741-47e5-91a2-0b62bef307ff}w64”. 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 RightSurf)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
504777d9031713f0dd961e607569b053

SHA-1:
f7d2b269554cc05b912819823e9a230b53beb429

SHA-256:
968792b47c3eba8f40f105147a6534cacdce4eea814fb3efbb921568f776cbdc

Scanner detections:
13 / 68

Status:
Adware

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

Analysis date:
12/10/2016 4:14:46 AM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Agnitum Outpost
Trojan.BPlug
7.1.1

Antiy Labs AVL
Trojan/Win32.TSGeneric
1.0.0.1

AVG
Generic
2015.0.3447

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1488

Dr.Web
Trojan.BPlug.123
9.0.1.0220

IKARUS anti.virus
AdWare.SpadeCast
t3scan.1.6.1.0

Jiangmin
AdWare/Yotoon.m
KV140808

McAfee
Artemis!8DF070DBCA84
5600.7045

McAfee Web Gateway
Artemis!8DF070DBCA84
7.7045

Reason Heuristics
PUP.RightSurf.m
14.8.8.3

Sophos
BrowseSmart
4.98

Trend Micro House Call
Suspicious_GEN.F47V0705
7.2.220

VIPRE Antivirus
Threat.4150696
30086

File size:
59.7 KB (61,112 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\{b9a19c25-a741-47e5-91a2-0b62bef307ff}w64.sys

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
11/27/2013 1:00:00 AM

Valid to:
11/28/2014 12:59:59 AM

Subject:
CN=RightSurf, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=RightSurf, L=San Diego, 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:
1E2DA13430E7E93CEF3759B2E4F7A34B

File PE Metadata
Compilation timestamp:
1/31/2014 1:45:30 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:jot2dxF9O8ZF33iqiIy938bWp9XcfBvJkowidInDm:j9JRicy938ip9ea1jq

Entry address:
0xF064

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, 2E, 20, FF, FF, CC, CC, 38, F2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 1C, F6, 00, 00, 60, C1, 00, 00, 28, F1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BE, F9, 00, 00, 50, C0, 00, 00, D8, F0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, FA, 00, 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, 00, 00, 00, 00, 9A, FA, 00, 00, 00, 00, 00, 00, 86, FA, 00, 00...
 
[+]

Code size:
46.5 KB (47,616 bytes)

Driver
Display name:
{b9a19c25-a741-47e5-91a2-0b62bef307ff}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI