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okupdate.exe

오픈키워드(OpenKeyword)

Maroin Co., Ltd

The application okupdate.exe by Maroin Co. has been detected as adware by 10 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. It is also typically executed from an Internet Explorer cache folder.
Publisher:
http://openkeyword.co.kr  (signed by Maroin Co., Ltd)

Product:
오픈키워드(OpenKeyword)

Version:
1.0.0.1

MD5:
acf376d7722504ab65e6fc31181af1da

SHA-1:
d61ce10930d6996f21a6d53b56123f323e21173b

SHA-256:
c721ccacbc78f267e58ab9a607fc25034b7d2f028e3ed4687cf0d3450afda6c2

Scanner detections:
10 / 68

Status:
Adware

Analysis date:
4/19/2024 5:24:53 AM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.OpenKeyword
2013.04.24

Avira AntiVirus
ADWARE/Adware.Gen
7.11.74.38

Clam AntiVirus
Adware.Openshopper-1
0.98/18155

Comodo Security
Heur.Suspicious
16038

Emsisoft Anti-Malware
Adware.Win32.OpenShopper.AMN
8.14.06.19.07

ESET NOD32
Win32/Adware.OpenShopper (variant)
8.8259

Malwarebytes
Adware.KorAd
v2014.06.19.07

nProtect
Adware/W32.KrAdword.427496
13.04.23.04

Reason Heuristics
PUP.MaroinCo.I
14.8.25.1

Trend Micro House Call
TROJ_GEN.F47V0329
7.2.170

File size:
417.5 KB (427,496 bytes)

Product version:
1.0.0.1

Copyright:
오픈키워드(OpenKeyword)

Trademarks:
오픈키워드(OpenKeyword)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
Maroin Co., Ltd

Authority:
Thawte, Inc.

Valid from:
1/14/2013 9:00:00 AM

Valid to:
1/15/2014 8:59:59 AM

Subject:
CN="Maroin Co., Ltd", OU=Dev Team, O="Maroin Co., Ltd", L=Haeundae-gu, S=Busan, C=KR

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
45D35AE0597265A616314A55E3EBE91B

File PE Metadata
Compilation timestamp:
12/6/2009 7:50:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:5e349dUmipxVBLOmKyKbPmYMELJC4egw6D0SD9PmwvF0QK7HC0CmhdPCdCfN7bXJ:ddxsBdTu9FLEg19DF0X7HDndPD7bG4J

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9316

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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