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regcleanob.exe

RegClean

The application regcleanob.exe has been detected as a potentially unwanted program by 7 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 setup routine uses the RevenYou.Com Pay Per Install platform (OutBrowse) which bundles additional software offers inclduing toolbars, extensions, PC utilities as well as other PUPs. The file has been seen being downloaded from cdn.ppdownload.com.
Publisher:
RegClean

Product:
RegClean

Version:
4.0

MD5:
c779ba51084d4db3dd0071d9bf1602e1

SHA-1:
ce4a18c6420321c61af430ee48f922d60d5c639c

SHA-256:
67debe5ebef2123e4fa90bde0606e4b0e9404b0310b942ae811f7fd7ac063f46

Scanner detections:
7 / 68

Status:
Potentially unwanted

Explanation:
Bundles additional adware offers during download and installation using the OutBrowse installer.

Analysis date:
4/18/2024 3:00:28 PM UTC  (today)

Scan engine
Detection
Engine version

Baidu Antivirus
Trojan.Win32.MyPCBackup
4.0.3.131221

Dr.Web
Adware.Downware.1353
9.0.1.0355

ESET NOD32
Win32/OutBrowse
7.9190

G Data
Win32.Application.RegCleanPro
13.12.22

Malwarebytes
PUP.Optional.RegCleanerPro
v2013.12.21.05

Trend Micro House Call
TROJ_GEN.R0CBH07K213
7.2.355

VIPRE Antivirus
Trojan.Win32.Generic!SB.0
24588

File size:
5.3 MB (5,595,241 bytes)

Copyright:
© RegClean

Trademarks:
RegClean

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

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

File PE Metadata
Compilation timestamp:
12/5/2009 4:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
98304:63TMBy4ElxX2oJVjTsL9LVLsHjKg0746D4hGmG9wS7sCUhxaEmUZINk0Upf9Kikp:qg4v2msLJVw6D40tLsCUzaEmUZRqTb0E

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:
7.9979

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://cdn.ppdownload.com/Installer/.../RegCleanOB.exe

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