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lkd4ylfo.0qs

TrUsted DownLoAd tYy

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The file lkd4ylfo.0qs by TrUsted DownLoAd tYy has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the OutBrowse Revenyou installer. It is also typically executed from the user's temporary directory.
Publisher:
TrUsted DownLoAd tYy  (signed and verified)

MD5:
c4d7b0ae768d606745814a2e19bcd44d

SHA-1:
1aad184f9748e160917c50ccc6f63fd3dce7d5d5

SHA-256:
22c6ba125cd1ecf518a4d86267f347d26c8fcdb4ff21ed3511a8a074a08ae745

Scanner detections:
1 / 68

Status:
Adware

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.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
1/12/2025 8:38:26 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.TrUstedD.Bundler (M)
16.3.31.15

File size:
558.2 KB (571,632 bytes)

Bundler/Installer:
OutBrowse Revenyou (using Nullsoft Install System)

Common path:
C:\users\{user}\appdata\local\temp\lkd4ylfo.0qs

Digital Signature
Signed by:
TrUsted DownLoAd tYy

Authority:
thawte, Inc.

Valid from:
4/1/2015 4:00:00 AM

Valid to:
1/28/2016 3:59:59 AM

Subject:
CN=TrUsted DownLoAd tYy, O=TrUsted DownLoAd tYy, L=Dublin, S=Dublin, C=IE

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
0CDFCE4A533C28CF0113C9703590DD6E

File PE Metadata
Compilation timestamp:
12/6/2009 2:52:12 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:G0cvYGwL4m9io0VO1LlLvDn2tvT7AQLCqdSBh9SqBs:GKn4jVO1LxStvT7AGdeh4qB

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, 1C, 45, 00, E8, F1, 2B, 00, 00, A3, 64, 1B, 45, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 37, 43, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, DB, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, A0, 47, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9638

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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