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helper.dll

Small Island Development

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 helper.dll by Small Island Development has been detected as adware by 12 anti-malware scanners. It is also typically executed from the user's temporary directory.
Publisher:
Small Island Development  (signed and verified)

MD5:
46c8c025cad1cfed23d4f99d28e608b8

SHA-1:
a05eb489a295278ba93431c3882c165063f4094e

SHA-256:
358a27971ac1210e04eafc64a6220a9cd878b0699ad64ebff4d7341a33cd1888

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:
5/11/2024 2:39:17 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.PullUpdate
7.1.1

AhnLab V3 Security
PUP/Win32.PullUpdate
2015.03.14

Avira AntiVirus
ADWARE/Adware.Gen7
7.11.217.26

AVG
Generic_r
2016.0.3153

Baidu Antivirus
Adware.MSIL.PullUpdate
4.0.3.15331

Bkav FE
W32.HfsAdware
1.3.0.6379

Dr.Web
Adware.Yontoo.57
9.0.1.090

ESET NOD32
MSIL/Adware.PullUpdate (variant)
9.11318

K7 AntiVirus
Adware
13.200.15259

NANO AntiVirus
Riskware.Win32.PullUpdate.dmgkwr
0.30.0.296

Panda Antivirus
Adware/TVWizard
15.03.31.11

Reason Heuristics
PUP.Injekt
15.4.1.0

File size:
1.3 MB (1,382,384 bytes)

File type:
Dynamic link library (Win32 DLL)

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

Digital Signature
Signed by:
Small Island Development

Authority:
Symantec Corporation

Valid from:
12/23/2014 4:00:00 PM

Valid to:
2/22/2016 3:59:59 PM

Subject:
CN=Small Island Development, O=Small Island Development, L=St. James, S=St. James, C=BB

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
2ACB4CDCE993E485342ABFA2BCA95A17

File PE Metadata
Compilation timestamp:
3/11/2015 12:16:12 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
24576:BGnECQ2hePk2aUdI7UqR5fGY7ApCfc6vOWBvcAcgTVOAhnKrVkRH9j8TBjufSm:BGQ2hukFUdI7UqR5fkvuOgcO/J2VkRHX

Entry address:
0xE09D4

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, 10, DF, 00, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 07, 00, 00, 00, 83, C4, 0C, 5D, C2, 0C, 00, 6A, 0C, 68, 70, C7, 12, 10, E8, 6D, 6A, 00, 00, 33, C0, 40, 8B, 75, 0C, 85, F6, 75, 0C, 39, 35, 98, E0, 13, 10, 0F, 84, E4, 00, 00, 00, 83, 65, FC, 00, 83, FE, 01, 74, 05, 83, FE, 02, 75, 35, 8B, 0D, 38, 14, 11, 10, 85, C9, 74, 0C, FF, 75, 10, 56, FF, 75, 08, FF, D1, 89, 45, E4, 85, C0, 0F, 84, B1, 00, 00, 00, FF, 75, 10, 56, FF, 75, 08, E8, 11, FE, FF, FF, 89, 45, E4...
 
[+]

Entropy:
6.5847

Developed / compiled with:
Microsoft Visual C++

Code size:
1.1 MB (1,104,384 bytes)

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