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ext_setup.exe

Kiril Klimko

The is the installer for the WebPick InstalleRex download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed without consent. The application ext_setup.exe by Kiril Klimko has been detected as adware by 27 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex installer. It is built using the Crossrider cross-browser extension toolkit. While the file utilizes the Crossrider framework and delivery services, it is not owned by Crossrider.
Publisher:
Kiril Klimko  (signed and verified)

MD5:
6de5dbc59ecdf20beb8a88711c2ff574

SHA-1:
4f181709945152f2b0623bc211e1582edef7a3e6

SHA-256:
42659f7632501c5205b1ba49ca679ead417902d81aeca39ecc3830697ba39d8a

Scanner detections:
27 / 68

Status:
Adware

Explanation:
The software may change the browser's home page and search provider settings as well as display advertisements.

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
5/7/2024 12:05:15 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.Dropper.101
927

Agnitum Outpost
PUA.MultiPlug
7.1.1

AhnLab V3 Security
Adware/Win32.Agent
2014.07.23

Avira AntiVirus
TR/Graftor.141601.A
7.11.163.102

avast!
Win32:MultiPlug-AC [PUP]
140617-1

AVG
Adware Generic5.APLW
2014.0.3986

Bitdefender
Gen:Variant.Adware.Dropper.101
1.0.20.1015

Clam AntiVirus
Win.Adware.Agent-6652
0.98/19185

Comodo Security
Application.Win32.Multiplug.GETF
18936

Dr.Web
Trojan.Crossrider.5139
9.0.1.05190

Emsisoft Anti-Malware
Gen:Variant.Adware.Dropper.101
8.14.07.22.02

ESET NOD32
Win32/AdWare.MultiPlug.R application
7.0.302.0

F-Prot
W32/MultiPlug.C.gen
v6.4.7.1.166

F-Secure
Gen:Variant.Adware.Dropper.101
11.2014-22-07_3

G Data
Gen:Variant.Adware.Dropper.101
14.7.24

IKARUS anti.virus
Win32.SuspectCrc
t3scan.1.6.1.0

K7 AntiVirus
Unwanted-Program
13.181.12806

Malwarebytes
PUP.Optional.MultiPlug.A
v2014.07.22.02

McAfee
PUP-FID
5600.7061

MicroWorld eScan
Gen:Variant.Adware.Dropper.101
15.0.0.609

NANO AntiVirus
Trojan.Win32.Crossrider.cvopfn
0.28.2.60990

Panda Antivirus
Trj/Genetic.gen
14.07.22.02

Reason Heuristics
PUP.Installer.KirilKlimko.J
14.7.22.13

Rising Antivirus
PE:Malware.MultiPlug!6.13CF
23.00.65.14720

Sophos
MultiPlug
4.98

Vba32 AntiVirus
AdWare.Agent
3.12.26.3

VIPRE Antivirus
Threat.4786450
31208

File size:
653.7 KB (669,424 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
WebPick InstalleRex

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\addons\ext_setup.exe

Digital Signature
Signed by:
Kiril Klimko

Authority:
COMODO CA Limited

Valid from:
9/3/2013 5:30:00 AM

Valid to:
9/4/2014 5:29:59 AM

Subject:
CN=Kiril Klimko, O=Kiril Klimko, STREET=Perova 21, L=Kiev, S=Kiev, PostalCode=02125, C=UA

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
4F8445DA07CAF9C24D869920925BA182

File PE Metadata
Compilation timestamp:
3/16/2014 6:04:27 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
12288:V/36Cpd8FZT4JY+rM9v6m7KQUj/B/1APyG3T86ExdDNxNs5Ad8Yf:V/3ZkZT4JYQQSmWFN/WP33T87fD3qO8A

Entry address:
0x10A4B

Entry point:
E8, 3E, 4A, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, B8, 21, 42, 00, E8, 1F, 21, 00, 00, E8, E0, 07, 00, 00, 0F, B7, F0, 6A, 02, E8, D1, 49, 00, 00, 59, B8, 4D, 5A, 00, 00, 66, 39, 05, 00, 00, 40, 00, 74, 04, 33, DB, EB, 33, A1, 3C, 00, 40, 00, 81, B8, 00, 00, 40, 00, 50, 45, 00, 00, 75, EB, B9, 0B, 01, 00, 00, 66, 39, 88, 18, 00, 40, 00, 75, DD, 33, DB, 83, B8, 74, 00, 40, 00, 0E, 76, 09, 39, 98, E8, 00, 40, 00, 0F, 95, C3, 89, 5D, E4, E8, 90, 37, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Entropy:
7.7604  (probably packed)

Code size:
103 KB (105,472 bytes)

The executing file has been seen to make the following network communication in live environments.

TCP (HTTP):
Connects to r1.stylezip.info  (54.186.255.26:80)

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