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{fed5e6b2-4fc4-43ba-8e95-001d959d8008}w64.sys

Whilokii

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {fed5e6b2-4fc4-43ba-8e95-001d959d8008}w64.sys by Whilokii has been detected as adware by 7 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{fed5e6b2-4fc4-43ba-8e95-001d959d8008}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 Whilokii)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
b6d62e46efffd2e2d4881c1fa4f6cb4e

SHA-1:
24d5f6c12715ab96c19b557b6dee48a933e2feef

SHA-256:
cb6c2e6d80e274978be3d7261b2b81906e338bf002ec4caf856bb47cd43397d3

Scanner detections:
7 / 68

Status:
Adware

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

Analysis date:
4/26/2024 1:20:51 PM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
Trojan/Win64.SwiftBrowse
2014.09.17

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141022

IKARUS anti.virus
AdWare.SpadeCast
t3scan.1.6.1.0

Reason Heuristics
PUP.Whilokii.m
14.10.22.4

Sophos
Browse Fox
4.98

Trend Micro House Call
TROJ_GEN.F47V0602
7.2.295

VIPRE Antivirus
Yontoo
33176

File size:
47.7 KB (48,824 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\{fed5e6b2-4fc4-43ba-8e95-001d959d8008}w64.sys

Digital Signature
Signed by:
Whilokii

Authority:
VeriSign, Inc.

Valid from:
9/19/2013 2:00:00 AM

Valid to:
9/20/2015 1:59:59 AM

Subject:
CN=Whilokii, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Whilokii, 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:
5D49818D94FEA0AEA7D9B885C9BACBD7

File PE Metadata
Compilation timestamp:
9/22/2014 9:01:54 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:lx7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3EgBQ:fFID6EGnLA8AFJTNEVmDEYQ

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...
 
[+]

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{fed5e6b2-4fc4-43ba-8e95-001d959d8008}w64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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