home

webget_setup.exe

webget

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application webget_setup.exe by webget has been detected as adware by 25 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages. It is also typically executed from the user's temporary directory. While running, it connects to the Internet address api.yontoo.com on port 80 using the HTTP protocol.
Publisher:
webget  (signed and verified)

MD5:
07192f5d3400275d4a799d4716256fbd

SHA-1:
6bf2bc88c0e1461ed8d2f2bb6aa9432333cb9f37

SHA-256:
954dac77682462f753b6c27b73a5d455db06cd25e8130f8530e61a4e971951ee

Scanner detections:
25 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/18/2024 10:52:22 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.BHO.Agent.4
833

Agnitum Outpost
PUA.Agent
7.1.1

Avira AntiVirus
APPL/BrowseFox.Gen2
7.11.150.88

AVG
BrowseFox
2015.0.3311

Baidu Antivirus
Adware.Win32.Agent
4.0.3.141025

Bitdefender
Gen:Variant.Adware.BHO.Agent.4
1.0.20.1490

Comodo Security
Application.Win32.Altbrowse.AK
18286

Dr.Web
Trojan.BPlug.28
9.0.1.0298

Emsisoft Anti-Malware
Gen:Variant.Adware.BHO.Agent
8.14.10.25.07

ESET NOD32
Win32/BrowseFox (variant)
8.9818

Fortinet FortiGate
Adware/Agent
10/25/2014

F-Secure
Gen:Variant.Adware.BHO.Agent.4
11.2014-25-10_7

G Data
Gen:Variant.Adware.BHO.Agent
14.10.24

K7 AntiVirus
Unwanted-Program
13.177.12109

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.3048

Malwarebytes
PUP.Optional.Webget.A
v2014.10.25.07

McAfee
Artemis!07192F5D3400
5600.6967

MicroWorld eScan
Gen:Variant.Adware.BHO.Agent.4
15.0.0.894

NANO AntiVirus
Riskware.Win32.Agent.cummdd
0.28.0.59911

Panda Antivirus
Trj/CI.A
14.10.25.07

Reason Heuristics
PUP.Installer.webget.M
14.10.25.7

Rising Antivirus
NS:PUF.SilenceInstaller!1.9DDF
23.00.65.141023

SUPERAntiSpyware
Adware.BrowseFox/Variant
10278

Trend Micro House Call
TROJ_GEN.F47V0518
7.2.298

VIPRE Antivirus
Yontoo
29372

File size:
2 MB (2,065,200 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
webget

Authority:
VeriSign, Inc.

Valid from:
4/22/2014 5:00:00 AM

Valid to:
4/23/2015 4:59:59 AM

Subject:
CN=webget, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=webget, L=Santa Monica, 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:
2DDF0A91A7D2108F978BEB26D4734BBA

File PE Metadata
Compilation timestamp:
12/6/2009 3:52:01 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
49152:J1FwF8DymdTSde+z0gKuMS2+q3aOPs5oaPQ2giI8x:J1FwuN4Xz04NqHPsGaPNgi9x

Entry address:
0x30CB

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, 38, 6F, 44, 00, E8, F1, 2B, 00, 00, A3, 84, 6E, 44, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, 9C, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 2E, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, F0, 46, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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

TCP (HTTP):
Connects to wac.edgecastcdn.net  (72.21.81.13:80)

TCP (HTTP):
Connects to service.yontoo.com  (8.25.35.148:80)

TCP (HTTP):
Connects to api.yontoo.com  (8.25.35.15:80)

Remove webget_setup.exe - Powered by Reason Core Security
herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.