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util_ex.dll

Injekt 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 as well as modify the computer’s system settings that control applications to run on startup. Part of the Injekt brand of unwanted programs. The module util_ex.dll by Injekt has been detected as adware by 12 anti-malware scanners. It is also typically executed from the user's temporary directory.
Publisher:
Injekt LLC  (signed and verified)

MD5:
55f373f4a2a3f6798c84e6b5e2019266

SHA-1:
b02b2b9e0be351cf737a9e18d9abc1f2ba594c93

SHA-256:
c3cee0b62b37064acac465d214c3917694622b61d374bfe9319ad5189e4743a9

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:
4/18/2024 12:24:20 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.Agent.NUR
876

Agnitum Outpost
Riskware.Agent
7.1.1

Bitdefender
Adware.Agent.NUR
1.0.20.1270

Emsisoft Anti-Malware
Adware.Agent.NUR
8.14.09.11.02

ESET NOD32
Win32/ExFriendAlert (variant)
8.9704

F-Secure
Adware.Agent.NUR
11.2014-11-09_5

G Data
Adware.Agent.NUR
14.9.24

MicroWorld eScan
Adware.Agent.NUR
15.0.0.762

nProtect
Adware.Agent.NUR
14.04.30.01

Reason Heuristics
PUP.Injekt.H
14.8.8.3

Sophos
Search Donkey
4.98

VIPRE Antivirus
Injekt
28732

File size:
774.8 KB (793,440 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:
Injekt LLC

Authority:
VeriSign, Inc.

Valid from:
3/22/2014 8:00:00 PM

Valid to:
6/22/2015 7:59:59 PM

Subject:
CN=Injekt LLC, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Injekt LLC, L=Carlsbad, 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:
22388FB3C3238D36E8B8ABBBE3903F04

File PE Metadata
Compilation timestamp:
4/17/2014 8:19:34 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:xsbeQ/SZLDdFkpFxKbNNskJGeSPmknY2kzMhLU2eZnOhArO5RgKgbpvTXpdw/Bk:x11Ln4KpdQDmx7zMGfyn6vTXuk

Entry address:
0x8E627

Entry point:
8B, FF, 55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, 06, 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, 5C, 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:
6.7482

Code size:
657 KB (672,768 bytes)

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