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w3idownloader.exe

The application w3idownloader.exe has been detected as a potentially unwanted program by 6 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The file has been seen being downloaded from www.4sinstalls.info.
MD5:
47d3e1a1b1485ccc6c846284ec3a71e9

SHA-1:
924dcc7c2daece87de0bb607639be00d5c154ead

SHA-256:
035f85c2651cc51d62aeb6f67d0e7e0c6bf1ec73850b11c536c1fa1f8b487a84

Scanner detections:
6 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallIQ (by InstallX) software bundler that may include toolbars and other browser extensions offers.

Analysis date:
2/25/2025 6:38:50 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Trojan.DownLoader9.40151
9.0.1.0104

Malwarebytes
PUP.Optional.InstallIQ
v2014.04.14.07

McAfee
RDN/Generic.tfr!dw
5600.7160

Norman
Malware
11.20140414

Qihoo 360 Security
Win32/Trojan.67a
1.0.0.1015

VIPRE Antivirus
Trojan.Win32.Generic
28194

File size:
116.1 KB (118,863 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\w3idownloader.exe

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:MgXdZt9P6D3XJAwCDY9OvC1PqI3m9gG/o7ZGm:Me342ZDY9r1Sim9dg7ZGm

Entry address:
0x30FA

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, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.3434

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file w3idownloader.exe has been seen being distributed by the following URL.

http://www.4sinstalls.info/.../w3iDownloader.exe

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