Categories: Trojan

What is “TrojanDropper:Win32/Pykspa.A”?

The TrojanDropper:Win32/Pykspa.A 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/Pykspa.A virus can do?

  • Attempts to connect to a dead IP:Port (1 unique times)
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • A process attempted to delay the analysis task.
  • Dynamic (imported) function loading detected
  • Enumerates running processes
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • Drops a binary and executes it
  • Unconventionial language used in binary resources: Russian
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Attempts to stop active services
  • Created a process from a suspicious location
  • Installs itself for autorun at Windows startup
  • Creates a copy of itself
  • Attempts to disable UAC
  • Attempts to modify UAC prompt behavior

How to determine TrojanDropper:Win32/Pykspa.A?


File Info:

name: D00BE94B0138CD02C807.mlwpath: /opt/CAPEv2/storage/binaries/bfbd21578e4687238fc915df8d3f8e053d107c6235293d593197c94d11ff4803crc32: 2C7397F3md5: d00be94b0138cd02c80760a6c0d62e42sha1: be70c01e1b9b09c7df64040b2476d3aed6c9333esha256: bfbd21578e4687238fc915df8d3f8e053d107c6235293d593197c94d11ff4803sha512: 588663d6255a522578da0ea584a312783965cda276626c90fde0e6f8e05cc5efe765be0b20ab7468a4cb996bc31b31236cc8ec09365b73108ecc5c3373cb6b76ssdeep: 12288:z6bvdl0zCB8EDItMTzwg7lMQsvNuqZBRbZEYTwdD7IjLgd94Y7Gp2:8vdezCByqTtlMQsFuqzRbzI7IYNtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1ABC4D010EA40083ACB1A06FC909EC5AF2646BFB29ED901EE1AFDBED7D6702D1544DD17sha3_384: c805fbf255002bfe11d42f20f6273052b1e7d290a4bb3725d92f9be6189813f8148bbbb39f33717504657f975ab9ff22ep_bytes: 6a606870714000e87f030000bf940000timestamp: 2009-04-17 17:23:08

Version Info:

0: [No Data]

TrojanDropper:Win32/Pykspa.A also known as:

Bkav W32.FamVT.MyurenDC.Trojan
Lionic Trojan.Win32.Generic.lvMt
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Dropper.VIO
CAT-QuickHeal Trojan.KillAv.DR
McAfee BackDoor-EJG
Cylance Unsafe
Zillya Worm.AutoRun.Win32.116380
K7AntiVirus Trojan ( 003b31ad1 )
K7GW Trojan ( 003b31ad1 )
Cybereason malicious.b0138c
Baidu Win32.Worm.Autorun.j
Cyren W32/KillAV.M.gen!Eldorado
Symantec W32.Pykspa!gen1
ESET-NOD32 Win32/AutoRun.Agent.TV
APEX Malicious
Paloalto generic.ml
ClamAV Win.Malware.Pykspa-6723766-0
Kaspersky Worm.Win32.AutoRun.iea
BitDefender Trojan.Dropper.VIO
NANO-Antivirus Trojan.Win32.Chydo.eahreo
SUPERAntiSpyware Trojan.Agent/Gen-KillAV
Avast Win32:Chydo [Drp]
Tencent Trojan.Win32.FakeAlert.ate
Ad-Aware Trojan.Dropper.VIO
Sophos Mal/Generic-R + Troj/Bckdr-RAK
Comodo Worm.Win32.AutoRunAgent.TV2@1lq8ot
DrWeb Trojan.MulDrop5.14836
VIPRE Trojan.Win32.Pykspa.a (v)
TrendMicro WORM_MESSEN.SMF
McAfee-GW-Edition BehavesLike.Win32.Backdoor.hc
FireEye Generic.mg.d00be94b0138cd02
Emsisoft Trojan.Dropper.VIO (B)
SentinelOne Static AI – Malicious PE
GData Win32.Trojan.PSE.1IFY41
Jiangmin Trojan/Chydo.bj
Avira TR/Drop.Agent.cpg
MAX malware (ai score=89)
Antiy-AVL Trojan/Generic.ASMalwS.1E76D
Gridinsoft Ransom.Win32.Gen.sa
Arcabit Trojan.Dropper.VIO
ViRobot Trojan.Win32.Chydo.516096.B
Microsoft TrojanDropper:Win32/Pykspa.A
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Chydo.R40147
Acronis suspicious
VBA32 BScope.Worm.Chydo
ALYac Trojan.Dropper.VIO
Malwarebytes Trojan.Chydo
TrendMicro-HouseCall WORM_MESSEN.SMF
Rising Downloader.Dwonk!1.662D (CLASSIC)
Yandex Trojan.GenAsa!uxS0cK+M0EA
Ikarus Trojan-Dropper.Agent
eGambit Unsafe.AI_Score_99%
Fortinet W32/Agent.LGB!tr
BitDefenderTheta AI:Packer.A886741E20
AVG Win32:Chydo [Drp]
Panda Generic Malware
CrowdStrike win/malicious_confidence_100% (W)
MaxSecure Worm.Agent.adx

How to remove TrojanDropper:Win32/Pykspa.A?

  • 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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