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webinstaller.exe

JDownloader2 (BETA)

AppWork GmbH

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application webinstaller.exe, “JDownloader2 (BETA) Setup for Windows” by AppWork GmbH has been detected as a potentially unwanted program by 3 anti-malware scanners. The program is a setup application that uses the installCore installer. The file has been seen being downloaded from m.softonic.fr and multiple other hosts. While running, it connects to the Internet address installer.jdownloader.org on port 80 using the HTTP protocol.
Publisher:
AppWork GmbH  (signed and verified)

Product:
JDownloader2 (BETA)

Description:
JDownloader2 (BETA) Setup for Windows

Version:
2.0.0.2

MD5:
cfe44ecbc7d21a35636685086e82f884

SHA-1:
fda287bf668e6d75af3183dee85f3604f5496a3d

SHA-256:
6683e5e6c057ddfbb751e6e9013d54389174bf3971c54079dcd745b2d6166353

Scanner detections:
3 / 68

Status:
Potentially unwanted

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
4/10/2025 7:01:33 AM UTC  (today)

Scan engine
Detection
Engine version

Clam AntiVirus
Win.Trojan.11366268
0.98/21411

Reason Heuristics
PUP.Installer.AppWorkGmbH.M
14.7.28.0

Vba32 AntiVirus
suspected of Trojan.Downloader.gen.h
3.12.26.0

File size:
74.6 KB (76,360 bytes)

Product version:
2.0.0.2

Copyright:
AppWork GmbH

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Nullsoft Install System)

Language:
English (United States)

Common path:
C:\users\{user}\downloads\webinstaller.exe

Digital Signature
Signed by:
AppWork GmbH

Authority:
GlobalSign nv-sa

Valid from:
1/31/2014 3:51:29 PM

Valid to:
4/1/2015 4:00:41 PM

Subject:
E=e-mail@appwork.org, CN=AppWork GmbH, O=AppWork GmbH, L=Fuerth, S=Bayern, C=DE

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
11218C489DBD3BC8AF35CDB519BA450DC59A

File PE Metadata
Compilation timestamp:
12/25/2013 6:01:35 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
1536:swDJZGrZopISbAoR8BXJXD9R9lFBtRThFTO7ParMqIfaq:5DJ0rZo6StCBXJ57BtNm+ha

Entry address:
0x3219

Entry point:
81, EC, 84, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 89, 5C, 24, 20, C6, 44, 24, 14, 20, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 8C, 72, 40, 00, 6A, 08, A3, 98, 37, 42, 00, E8, AD, 2D, 00, 00, A3, E4, 36, 42, 00, 53, 8D, 44, 24, 38, 68, 60, 01, 00, 00, 50, 53, 68, A0, EC, 41, 00, FF, 15, 64, 71, 40, 00, 68, E4, 91, 40, 00, 68, E0, 2E, 42, 00, E8, 57, 2A, 00, 00, FF, 15, B0, 70, 40, 00, BD, 00, 90, 42, 00, 50, 55, E8, 45, 2A...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file webinstaller.exe has been seen being distributed by the following 6 URLs.

http://m.softonic.fr/app/jdownloader-beta/.../lancer

http://jdownloader.software.informer.com/.../

http://installer.jdownloader.org/20140616170213817/wi2/windows/.../jdownloader2

http://download.informer.com/.../webinstaller.exe

http://installer.jdownloader.org/WebInstaller.exe

http://installer.jdownloader.org/WebInstallerJD2.exe

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

TCP (HTTP):
Connects to installer.jdownloader.org  (85.131.130.148:80)

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