Trojan

TrojanDropper:Win32/Gepys (file analysis)

Malware Removal

The TrojanDropper:Win32/Gepys 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 TrojanDropper:Win32/Gepys virus can do?

  • Executable code extraction
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • Reads data out of its own binary image
  • Installs a browser addon or extension
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Uses Windows utilities for basic functionality
  • A system process is generating network traffic likely as a result of process injection
  • Mimics the file times of a Windows system file
  • Installs itself for autorun at Windows startup
  • Creates a hidden or system file
  • Creates a copy of itself
  • The sample wrote data to the system hosts file.
  • Attempts to modify Explorer settings to prevent hidden files from being displayed

Related domains:

ewqscxz.fateback.com
www41.websamba.com

How to determine TrojanDropper:Win32/Gepys?


File Info:

crc32: 3C0DCB88
md5: 196e52b15bfbe3727ee7ca2fac2d04b9
name: 191010110053.exe
sha1: 510a2c243b0575d3422ee0e8277953a3cb1bdc5f
sha256: 1ab1ba79c99696305a8a6adae5f223bc78363a798e7844c35e766445379f9768
sha512: fb3d85ad8bd99b9e42ed8951249d24f7d0278707af0ad150d4048feb14c2c850c0c42eab648e2aa1d87ecb413fb03e3b527db44100db3bd1db71a1166965dd64
ssdeep: 3072:PPzyXANQX729D4G/aR3QSDADeak7dJHB/A:PPnar29D4d+SsQLH5A
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

Translation: 0x0409 0x04b0
ProductVersion: 1.00
InternalName: pikachu
FileVersion: 1.00
OriginalFilename: pikachu.exe
ProductName: Project1

TrojanDropper:Win32/Gepys also known as:

BkavW32.PikachuGTA.Worm
MicroWorld-eScanGen:Trojan.Malware.ymNfauiuKQai
FireEyeGeneric.mg.196e52b15bfbe372
CAT-QuickHealWorm.Chupik
McAfeeW32/Worm-FEL!196E52B15BFB
MalwarebytesTrojan.Agent
VIPRETrojan.Win32.Generic!BT
AegisLabVirus.Win32.Virut.kYOS
K7AntiVirusEmailWorm ( 000d1b6e1 )
BitDefenderGen:Trojan.Malware.ymNfauiuKQai
K7GWEmailWorm ( 000d1b6e1 )
Cybereasonmalicious.15bfbe
TrendMicroWORM_VB.SMLF
BitDefenderThetaAI:Packer.88B6D13A1C
CyrenW32/Brontok.I.gen!Eldorado
TotalDefenseWin32/Chupika.A
BaiduWin32.Trojan.Agent.at
APEXMalicious
Paloaltogeneric.ml
ClamAVLegacy.Trojan.Agent-1388589
KasperskyTrojan.Win32.Fsysna.djcx
AlibabaWorm:Win32/Fsysna.94762042
NANO-AntivirusTrojan.Win32.Drop.crsvig
ViRobotWorm.Win32.VB.110592.B
TencentWorm.Win32.Autorun.d
Ad-AwareGen:Trojan.Malware.ymNfauiuKQai
SophosMal/VB-F
ComodoWorm.Win32.Autorun.eb0@13re4o
F-SecureMalware.W32/Almanahe.D
DrWebTrojan.MulDrop2.63234
ZillyaWorm.VB.Win32.2095
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.Swisyn.fz
Trapminemalicious.moderate.ml.score
CMCGeneric.Win32.196e52b15b!CMCRadar
EmsisoftGen:Trojan.Malware.ymNfauiuKQai (B)
IkarusWorm.Win32.VB
GDataGen:Trojan.Malware.ymNfauiuKQai
JiangminWorm/VB.auk
MaxSecureTrojan.Malware.300983.susgen
AviraW32/Almanahe.D
Antiy-AVLWorm/Win32.VB
KingsoftWin32.Virut.ce.57344
MicrosoftTrojanDropper:Win32/Gepys
Endgamemalicious (moderate confidence)
ArcabitTrojan.Malware.ymNfauiuKQai
SUPERAntiSpywareTrojan.Agent/Gen-Pikachu
ZoneAlarmTrojan.Win32.Fsysna.djcx
AhnLab-V3HEUR/Fakon.mwf.X1381
Acronissuspicious
VBA32Worm.VB
ALYacGen:Trojan.Malware.ymNfauiuKQai
MAXmalware (ai score=100)
ZonerTrojan.Win32.32559
ESET-NOD32Win32/VB.NSP
TrendMicro-HouseCallWORM_VB.SMLF
RisingWorm.VobfusEx!1.99E4 (CLOUD)
YandexWorm.Chupik!EXA4Vn+0eQg
SentinelOneDFI – Malicious PE
eGambitUnsafe.AI_Score_94%
FortinetW32/VB.SDE!tr
WebrootW32.Worm.Apuj
PandaW32/Picachu.A.worm
CrowdStrikewin/malicious_confidence_100% (W)
Qihoo-360Win32/Worm.FakeFolder.LY

How to remove TrojanDropper:Win32/Gepys?

TrojanDropper:Win32/Gepys removal tool
  • 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.

About the author

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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