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EFupdater.exe

The application EFupdater.exe has been detected as a potentially unwanted program by 12 anti-malware scanners. It runs as a scheduled task under the Windows Task Scheduler triggered to execute each time a user logs in. It uses the ExpressFiles installer to bundle additional adware offers such as toolbars and web browser addons. While running, it connects to the Internet address mail.smile-files.com on port 80 using the HTTP protocol.
Version:
1, 0, 0, 6

MD5:
617d02fa45678fbe403e85838b93fbda

SHA-1:
6a676b8f4006951e2882440f6dc092c95d8b1ca4

SHA-256:
64d0f284cd3b9daae0530564c420c84b8777565d37de3eabf6fbffe82e7e260b

Scanner detections:
12 / 68

Status:
Potentially unwanted

Analysis date:
11/14/2024 2:29:15 AM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.ExpressFiles
2014.01.12

avast!
Win32:Expressfiles-B [PUP]
2014.9-131228

AVG
MalSign.Faglaro Enterprises Limited
2014.0.3612

Baidu Antivirus
Trojan.Win32.YourFileDownloader
4.0.3.131228

Bkav FE
W32.Clodab5.Trojan
1.3.0.4613

Dr.Web
Tool.DownLoader.52
9.0.1.0362

ESET NOD32
Win32/YourFileDownloader (variant)
7.9277

K7 AntiVirus
Trojan
13.175.10807

McAfee
Artemis!617D02FA4567
5600.7268

Norman
Suspicious_Gen4.FMUHC
11.20140113

Trend Micro House Call
TROJ_GEN.F47V1216
7.2.362

VIPRE Antivirus
ExpressFiles Installer
25316

File size:
1005 KB (1,029,120 bytes)

Product version:
1,0,0,0

Original file name:
EFupdater.exe

File type:
Executable application (Win32 EXE)

Language:
Russian (Russia)

Common path:
C:\Program Files\expressfiles\efupdater.exe

File PE Metadata
Compilation timestamp:
10/21/2013 6:54:29 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:c6jVJPqgw7biTH18cQXNVcJsKBJev2usDik+9nltLcunFYyQx1JL/GD+97pXBX02:z/pMbE8cQ4JDAvPjJ13FeJL/G2UEU

Entry address:
0x5051

Entry point:
E8, D1, 47, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, 48, F3, 40, 00, 8D, 7D, E0, F3, A5, 89, 45, F8, 8B, 45, 0C, 5F, 89, 45, FC, 5E, 85, C0, 74, 0C, F6, 00, 08, 74, 07, C7, 45, F4, 00, 40, 99, 01, 8D, 45, F4, 50, FF, 75, F0, FF, 75, E4, FF, 75, E0, FF, 15, D4, F0, 40, 00, C9, C2, 08, 00, 8B, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A3, 08, 52, 41, 00, 89, 0D, 04, 52, 41, 00, 89, 15, 00, 52, 41, 00, 89, 1D, FC, 51, 41, 00, 89, 35, F8, 51, 41, 00, 89, 3D...
 
[+]

Entropy:
7.2092

Code size:
53 KB (54,272 bytes)

Scheduled Task
Task name:
Express FilesUpdate

Trigger:
Logon (Runs on logon)


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

TCP (HTTP):
Connects to mail.smile-files.com  (46.23.68.149:80)

TCP (HTTP):
Connects to 199.195.196.180.static.midphase.com  (199.195.196.180:80)

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