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winlog.exe

JDownloader

Appwork GmbH

The application winlog.exe, “JDownloader 2 Launcher” by Appwork GmbH has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. It is set to automatically execute when any user logs into Windows (through the local user run registry setting) with the name ‘Igfx’. While running, it connects to the Internet address api.jdownloader.org on port 443.
Publisher:
Appwork GmbH  (signed and verified)

Product:
JDownloader

Description:
JDownloader 2 Launcher

Version:
2.0.0.1

MD5:
be12e442bc741ee2f47dd34681a1f660

SHA-1:
592b4e68db3cdf88e35fc0514f674bcf1c064e04

Scanner detections:
1 / 68

Status:
Potentially unwanted

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
12/25/2024 1:39:13 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
17.3.5.5

File size:
383.7 KB (392,952 bytes)

Product version:
2.0

Copyright:
Copyright AppWork GmbH

Original file name:
JDownloader2.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\Windows\System32\winlog\winlog.exe

Digital Signature
Signed by:
Appwork GmbH

Authority:
Thawte, Inc.

Valid from:
8/15/2014 5:30:00 AM

Valid to:
8/16/2015 5:29:59 AM

Subject:
CN=Appwork GmbH, O=Appwork GmbH, L=Fürth, S=Bayern, C=DE

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
0091626FD168636EDD78A174E8B75DAC

File PE Metadata
Compilation timestamp:
9/24/2014 1:45:09 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

Entry address:
0x11AFE

Entry point:
E8, 21, AC, 00, 00, E9, 78, FE, FF, FF, 8B, FF, 55, 8B, EC, 8B, 45, 08, 33, C9, 3B, 04, CD, 38, CC, 42, 00, 74, 13, 41, 83, F9, 2D, 72, F1, 8D, 48, ED, 83, F9, 11, 77, 0E, 6A, 0D, 58, 5D, C3, 8B, 04, CD, 3C, CC, 42, 00, 5D, C3, 05, 44, FF, FF, FF, 6A, 0E, 59, 3B, C8, 1B, C0, 23, C1, 83, C0, 08, 5D, C3, E8, EA, 07, 00, 00, 85, C0, 75, 06, B8, A0, CD, 42, 00, C3, 83, C0, 08, C3, E8, D7, 07, 00, 00, 85, C0, 75, 06, B8, A4, CD, 42, 00, C3, 83, C0, 0C, C3, 8B, FF, 55, 8B, EC, 56, E8, E2, FF, FF, FF, 8B, 4D, 08...
 
[+]

Entropy:
6.8286

Code size:
142.5 KB (145,920 bytes)

Startup File (All Users Run)
Registry location:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

Name:
Igfx

Command:
C:\Windows\System32\winlog\winlog.exe


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

TCP (HTTP SSL):
Connects to api.jdownloader.org  (88.99.115.46:443)

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