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sk.enhancer.exe

The application sk.enhancer.exe has been detected as a potentially unwanted program by 22 anti-malware scanners. It runs as a scheduled task under the Windows Task Scheduler triggered to execute each time a user logs in. This file is typically installed with the program SK.Enhancer by WebPick Internet Holdings Ltd. which is a potentially unwanted software program. According to AVG, this software downloads additional adware offers during setup. The file has been seen being downloaded from i1.stylefun.info and multiple other hosts.
MD5:
1d283dd3ae2312eee624e8b8c46f6adb

SHA-1:
3b2c90b0a0af44b405d746e437acbe2da1e5e741

SHA-256:
f5fbdc74afc209f2648490e077a2fcddc402cbc57ababbc2f735aaecde95681b

Scanner detections:
22 / 68

Status:
Potentially unwanted

Analysis date:
12/25/2024 12:58:24 PM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
Trojan/Win32.Agent
2013.12.13

Avira AntiVirus
TR/Downloader.Gen
7.11.119.90

AVG
Downloader.Generic13
2014.0.3627

Baidu Antivirus
Trojan.Win32.Agent
4.0.3.131212

Boost by Reason
Optional.Task.K
188163

Comodo Security
UnclassifiedMalware
17426

Dr.Web
Trojan.DownLoad3.30962
9.0.1.0346

ESET NOD32
Win32/TrojanDownloader.Agent.AFD (variant)
7.9164

Fortinet FortiGate
W32/Agent.AFD!tr.dldr
12/12/2013

K7 AntiVirus
Trojan-Downloader
13.174.10484

Malwarebytes
PUP.Optional.MultiPlug.A
v2013.12.12.05

McAfee
Artemis!1D283DD3AE23
5600.7283

NANO AntiVirus
Trojan.Win32.Agent.cojdgu
0.28.0.56692

Norman
Suspicious_Gen4.FKQEC
11.20131212

Panda Antivirus
Trj/Genetic.gen
13.12.12.05

Reason Heuristics
Unnamed.Threat.75
14.3.1.4

Sophos
Mal/Generic-S
4.95

Trend Micro House Call
TROJ_SPNR.29L213
7.2.346

Trend Micro
TROJ_SPNR.29L213
10.465.12

VIPRE Antivirus
Trojan.Win32.Generic
24282

ViRobot
Trojan.Win32.S.Agent.729600.B
2011.4.7.4223

XVirus List
Win.Detected
2.3.31

File size:
712.5 KB (729,600 bytes)

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\ProgramData\summersoft\sk.enhancer\sk.enhancer.exe

File PE Metadata
Compilation timestamp:
10/30/2013 2:20:08 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
12288:zyTIuwkmInMK1t5P9XRLRygg87452iBfLZfwa3K4TulXmfBB:zyThmqdt5ZTyI4YiBfVfzKsuZeB

Entry address:
0x44E4C

Entry point:
E8, 13, 6B, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, 48, 3E, 06, 10, E8, 1E, 04, 00, 00, E8, B4, 0B, 00, 00, 0F, B7, F0, 6A, 02, E8, A6, 6A, 00, 00, 59, B8, 4D, 5A, 00, 00, 66, 39, 05, 00, 00, 00, 10, 74, 04, 33, DB, EB, 33, A1, 3C, 00, 00, 10, 81, B8, 00, 00, 00, 10, 50, 45, 00, 00, 75, EB, B9, 0B, 01, 00, 00, 66, 39, 88, 18, 00, 00, 10, 75, DD, 33, DB, 83, B8, 74, 00, 00, 10, 0E, 76, 09, 39, 98, E8, 00, 00, 10, 0F, 95, C3, 89, 5D, E4, E8, 08, 12, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Entropy:
6.8712

Code size:
340 KB (348,160 bytes)

27 Scheduled Tasks
Task name:
SK.Enhancer-S-161304646

Trigger:
Logon (Runs on logon)

Task name:
Sk-Enabler-S-245486970

Trigger:
Logon (Runs on logon)

Task name:
SK.Enabler-S-1495795506

Trigger:
Logon (Runs on logon)

Task name:
GS-Enabler-S-1622525965

Trigger:
Logon (Runs on logon)

Task name:
GS-Enabler-S-960308484

Trigger:
Logon (Runs on logon)

Task name:
GS-Enabler-S-299282477

Path:
C:\WINDOWS\Tasks\GS-Enabler-S-299282477.job

Trigger:
Logon (Runs on logon)


The file sk.enhancer.exe has been discovered within the following programs.

SK.Enhancer  by WebPick Internet Holdings Ltd.
SK.Enhancer is a protection mechanism that is designed to protect bundled software of potentially unwanted programs distributed through bundles. Also know as SProtector, SK.
83% remove it
 
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The file sk.enhancer.exe has been seen being distributed by the following 12 URLs.

http://i1.stylefun.info/.../agup.exe

http://91.74.184.36/.../agent2.exe

http://i1.stylezip.info/.../agup.exe

http://i1.reportbox3.info/.../agup.exe

http://i1.securemyfun.info/.../agent2.exe

http://i1.megagetnews.net/.../agup.exe

http://i1.stylezip.info/.../agent2.exe

http://i1.proffiiget.in/.../agent2.exe

http://i1.forallwebestv.info/.../agup.exe

http://i1.proffiiget.in/.../agup.exe

http://i1.superstoragemy.com/.../agup.exe

http://i1.stylefun.info/.../agent2.exe

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