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obw_istartsurf.exe

4201_obw_istartsurf

Fuyuan Zhou

The application obw_istartsurf.exe by Fuyuan Zhou has been detected as adware by 9 anti-malware scanners. It is also typically executed from an Internet Explorer cache folder.
Publisher:
Welnk.com  (signed by Fuyuan Zhou)

Product:
4201_obw_istartsurf

Description:
Welnk

Version:
6.6.86.1640

MD5:
82a3a04e62f2ac3f9c34f9762f399605

SHA-1:
cd54c77165984ed06965ff3411e363b162b412eb

SHA-256:
b7ac21e6301d9e6336c8943841eed5e17703437be5fe318d6df99b85f82b055b

Scanner detections:
9 / 68

Status:
Adware

Analysis date:
11/1/2024 7:26:05 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

avast!
Win32:Malware-gen
2014.9-150910

Bkav FE
W32.HfsAdware
1.3.0.7062

Dr.Web
Adware.Mutabaha.597
9.0.1.0253

ESET NOD32
Win32/ELEX.EN potentially unwanted (variant)
9.12057

K7 AntiVirus
Adware
13.207.16813

Malwarebytes
PUP.Optional.IStartSurf.ShrtCln
v2015.09.10.08

NANO AntiVirus
Riskware.Win32.Mutabaha.dunath
0.30.24.2996

Reason Heuristics
PUP.FuyuanZhou (M)
15.9.10.8

File size:
277.1 KB (283,744 bytes)

Product version:
6.6.86.1000

Copyright:
Copyright (C) Welnk 2006

Original file name:
WeLink.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\obw_istartsurf.exe

Digital Signature
Signed by:
Fuyuan Zhou

Authority:
DigiCert Inc

Valid from:
1/15/2015 7:00:00 AM

Valid to:
1/20/2016 7:00:00 PM

Subject:
CN=Fuyuan Zhou, O=Fuyuan Zhou, L=Jilin, S=Jilin, C=CN

Issuer:
CN=DigiCert SHA2 Assured ID Code Signing CA, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
0933772030CFD7E6A3D0D1959D875688

File PE Metadata
Compilation timestamp:
7/23/2015 5:47:48 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:5oxCDGaymlXtzSCelgS/oOvtmOcnxY/HkQhpje:5jaNm8ll/oOFmXnenXe

Entry address:
0x13584

Entry point:
E8, 87, B7, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, 18, 95, 42, 00, 8D, 7D, E0, F3, A5, 89, 45, F8, 8B, 45, 0C, 5F, 89, 45, FC, 5E, 85, C0, 74, 0C, F6, 00, 08, 74, 07, C7, 45, F4, 00, 40, 99, 01, 8D, 45, F4, 50, FF, 75, F0, FF, 75, E4, FF, 75, E0, FF, 15, 60, 91, 42, 00, C9, C2, 08, 00, CC, CC, CC, CC, CC, CC, 8B, 4C, 24, 04, F7, C1, 03, 00, 00, 00, 74, 24, 8A, 01, 83, C1, 01, 84, C0, 74, 4E, F7, C1, 03, 00, 00, 00, 75, EF, 05, 00, 00, 00, 00, 8D, A4...
 
[+]

Entropy:
6.2341

Code size:
160 KB (163,840 bytes)

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