Categories: Trojan

About “Trojan.StartPage.4oLfaaU1rIgb” infection

The Trojan.StartPage.4oLfaaU1rIgb is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Trojan.StartPage.4oLfaaU1rIgb virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • Dynamic (imported) function loading detected
  • Performs HTTP requests potentially not found in PCAP.
  • A named pipe was used for inter-process communication
  • Reads data out of its own binary image
  • Attempts to modify Internet Explorer’s start page
  • Drops a binary and executes it
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Authenticode signature is invalid
  • A scripting utility was executed
  • Uses Windows utilities for basic functionality
  • Uses Windows utilities for basic functionality
  • Deletes its original binary from disk
  • Created a process from a suspicious location
  • Installs itself for autorun at Windows startup
  • Attempts to modify proxy settings
  • Uses suspicious command line tools or Windows utilities

How to determine Trojan.StartPage.4oLfaaU1rIgb?


File Info:

name: 3BDFB68F9FEC5423198B.mlwpath: /opt/CAPEv2/storage/binaries/303963e5e4d948c22bb5730aa1c6db672c69317810f32d97881daa280677352acrc32: 915C4960md5: 3bdfb68f9fec5423198be6ddea6617absha1: eb02da1910289e4f4893dd1be1605a89b4b87a86sha256: 303963e5e4d948c22bb5730aa1c6db672c69317810f32d97881daa280677352asha512: 9ca8b06d57c71487ba551806b7267de2a7be67f9eca6391660641c9ffcb666fc36df4bba2c09551c9720525ff7b490d51f5941be0eef8ec5605b8560675295a5ssdeep: 49152:ErwyytqOedF1LmNg9u6VEXWFwNq/zNdLfS21+NbKfTKal7FcsqZtthQBuhTNEof4:EMtqOedF1LmNgbWXIw8/JdLfS214+7K8type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T104E5331E12AA7839F4921D34112DF4E1470A30270B533EA45D57C9DEC5B6EE7AACAB83sha3_384: 4c6bc295d9046a6237b9b3a1385daf7a1d78d5ab4af851448562980cdafaff94044205c125f4ef8023893fb7fa04ff54ep_bytes: 60be000052008dbe0010eeff5783cdfftimestamp: 2022-04-01 05:54:08

Version Info:

FileVersion: 10.18.1.0FileDescription: MySkin LOLProductName: MySkinProductVersion: 10.18.1.0CompanyName: skyLegalCopyright: sky的版权所有Comments: MySkin LOLTranslation: 0x0804 0x04b0

Trojan.StartPage.4oLfaaU1rIgb also known as:

Elastic malicious (moderate confidence)
MicroWorld-eScan Gen:Trojan.StartPage.4oLfaaU1rIgb
FireEye Generic.mg.3bdfb68f9fec5423
CAT-QuickHeal Trojan.GenericRI.S25624699
McAfee GenericRXAA-AA!3BDFB68F9FEC
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus Adware ( 005848221 )
K7GW Adware ( 005848221 )
CrowdStrike win/grayware_confidence_100% (W)
Cyren W32/Trojan.CLL.gen!Eldorado
Symantec ML.Attribute.HighConfidence
tehtris Generic.Malware
ESET-NOD32 a variant of Win32/Packed.FlyStudio.AA potentially unwanted
APEX Malicious
ClamAV Win.Malware.Bulz-9889678-0
Kaspersky not-a-virus:AdWare.Win32.Agent.gen
BitDefender Gen:Trojan.StartPage.4oLfaaU1rIgb
NANO-Antivirus Riskware.Win32.StartPage1.jobqvh
Avast FileRepMalware [Trj]
Tencent Pua:Adware.Win32.Agent.16000297
Ad-Aware Gen:Trojan.StartPage.4oLfaaU1rIgb
Emsisoft Gen:Trojan.StartPage.4oLfaaU1rIgb (B)
Comodo Packed.Win32.MUPX.Gen@24tbus
DrWeb Trojan.StartPage1.60617
Zillya Adware.Agent.Win32.172065
TrendMicro TROJ_GEN.R011C0DDI22
McAfee-GW-Edition BehavesLike.Win32.Generic.vc
Sophos Mal/Generic-R + Mal/Agent-AVP
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Script.auat
Avira TR/Spy.Gen3
MAX malware (ai score=83)
Kingsoft Win32.Heur.KVM099.a.(kcloud)
Microsoft Trojan:Win32/Wacatac.B!ml
GData Win32.Trojan.PSE.15PTMPD
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win.Generic.R444729
VBA32 Adware.Agent
ALYac Gen:Trojan.StartPage.4oLfaaU1rIgb
Malwarebytes Malware.AI.1752481740
TrendMicro-HouseCall TROJ_GEN.R011C0DDI22
Rising Trojan.Convagent!8.12323 (RDMK:cmRtazoFY2krhlOlj6Y)
Yandex PUA.Agent!Ntrw4eTbROs
Ikarus Trojan.Black
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/CoinMiner.65CA!tr
BitDefenderTheta Gen:NN.ZexaF.34638.4oLfaaU1rIgb
AVG FileRepMalware [Trj]
Cybereason malicious.f9fec5
Panda Trj/Genetic.gen

How to remove Trojan.StartPage.4oLfaaU1rIgb?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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