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blockandsurf_2222-2120.exe

The application blockandsurf_2222-2120.exe 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 NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. This is part of the Revizer line of web browser extensions that inject 3rd-party advertisements in the user's web browser as well as setup a proxy server for the browser in order to track behaviors and display context based-ads from various partners (mostly adware).
Description:
Just For Windows

Version:
1.189.0.1

MD5:
4c63ad12a32af73298f0ea9f4431ebd0

SHA-1:
8af0bc17087de1f4c60e886bf25b92ec3235e7df

SHA-256:
1163eaf68ab0f57d34612a5edb2f696d819c27bbc80c02799c53c90efe19bc4f

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.

Analysis date:
4/28/2024 8:37:03 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Revizer.Installer (M)
16.4.30.9

File size:
4.6 MB (4,842,009 bytes)

Copyright:
Copyright (c) 2014

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\blockandsurf_2222-2120.exe

File PE Metadata
Compilation timestamp:
2/24/2012 1:19:59 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
98304:DOMLm8Vj2BN03OZgxBxJoBzWsYOHyQ9l1OZc4xw88/YBbvyZAr/L:yKjVj2BVCBJoBisnyQj1SFV8Yv/L

Entry address:
0x39E3

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, D8, 91, 40, 00, 89, 6C, 24, 14, FF, 15, 30, 80, 40, 00, 68, 01, 80, 00, 00, FF, 15, B8, 80, 40, 00, 55, FF, 15, C0, 82, 40, 00, 6A, 08, A3, B8, 2E, 47, 00, E8, 37, 2A, 00, 00, 55, 68, B4, 02, 00, 00, A3, D0, 2D, 47, 00, 8D, 44, 24, 38, 50, 55, 68, 1C, 93, 40, 00, FF, 15, 84, 81, 40, 00, 68, 04, 93, 40, 00, 68, C0, AD, 46, 00, E8, 19, 27, 00, 00, FF, 15, B4, 80, 40, 00, 50, BF, A0, 30, 4C, 00, 57, E8, 07, 27, 00, 00...
 
[+]

Entropy:
7.9985

Packer / compiler:
Nullsoft install system v2.x

Code size:
28 KB (28,672 bytes)

The file blockandsurf_2222-2120.exe has been seen being distributed by the following URL.

http://atn.frmclstr.com/apps/.../BlockAndSurf_2222-2120.exe

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