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util_ex.dll

Creative Island Media, LLC

This is part of an adware program designed to inject advertising in the web browser (banners, text-links) as well as modify the normal behavior of the browser. Part of the Injekt brand of unwanted programs. The module util_ex.dll by Creative Island Media has been detected as adware by 12 anti-malware scanners. It is also typically executed from the user's temporary directory.
Publisher:
Creative Island Media, LLC  (signed and verified)

MD5:
5aa69112b13cf81626b3261b42b6e8b6

SHA-1:
89f98ed3b8a037379e53e6d4629a40797ccd1e3a

SHA-256:
c4ab793a6899b4438e4161e079ce400c149e0c36367e63604820b7f65c4bfe1e

Scanner detections:
12 / 68

Status:
Adware

Explanation:
Injects display ads (banner ads), in-text ads, interstitial ads, or other types of ads in the web browser as well as alters the browsers settings (home page, search, DNS, and security protocols).

Analysis date:
4/20/2024 2:26:40 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.Agent.NUR
886

Agnitum Outpost
Riskware.Agent
7.1.1

Bitdefender
Adware.Agent.NUR
1.0.20.1220

Emsisoft Anti-Malware
Adware.Agent.NUR
8.14.09.01.03

ESET NOD32
Win32/ExFriendAlert (variant)
8.9575

F-Secure
Adware.Agent.NUR
11.2014-01-09_2

G Data
Adware.Agent.NUR
14.9.24

MicroWorld eScan
Adware.Agent.NUR
15.0.0.732

nProtect
Adware.Agent.NUR
14.03.21.01

Reason Heuristics
PUP.CreativeIslandMedia.H
14.9.1.15

Sophos
Search Donkey
4.98

VIPRE Antivirus
Injekt
28732

File size:
775.9 KB (794,488 bytes)

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\util_ex.dll

Digital Signature
Signed by:
Creative Island Media, LLC

Authority:
VeriSign, Inc.

Valid from:
5/20/2013 8:00:00 PM

Valid to:
5/21/2014 7:59:59 PM

Subject:
CN="Creative Island Media, LLC", OU=Digital ID Class 3 - Microsoft Software Validation v2, O="Creative Island Media, LLC", 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:
68F23F4D2767F6491DEA9186F2E5CB89

File PE Metadata
Compilation timestamp:
7/29/2013 7:00:04 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:YnpNIoldAkQzJ9JePTgiqmKW8wYfkFHR7QcVGMp8c6Gh+CA1bGk45NdwvGz:Yfg9Ur+Wuc54MJ4CKGkgT

Entry address:
0x8EA27

Entry point:
8B, FF, 55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, 05, B0, 00, 00, FF, 75, 08, 8B, 4D, 10, 8B, 55, 0C, E8, EC, FE, FF, FF, 59, 5D, C2, 0C, 00, CC, CC, CC, CC, CC, CC, 8B, 54, 24, 0C, 8B, 4C, 24, 04, 85, D2, 74, 69, 33, C0, 8A, 44, 24, 08, 84, C0, 75, 16, 81, FA, 80, 00, 00, 00, 72, 0E, 83, 3D, E0, CF, 0B, 10, 00, 74, 05, E9, 5B, B0, 00, 00, 57, 8B, F9, 83, FA, 04, 72, 31, F7, D9, 83, E1, 03, 74, 0C, 2B, D1, 88, 07, 83, C7, 01, 83, E9, 01, 75, F6, 8B, C8, C1, E0, 08, 03, C1, 8B, C8, C1, E0, 10, 03, C1, 8B, CA...
 
[+]

Entropy:
6.7512

Code size:
658 KB (673,792 bytes)

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