Trojan

VBS/TrojanDownloader.Agent.PSI removal guide

Malware Removal

The VBS/TrojanDownloader.Agent.PSI 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 VBS/TrojanDownloader.Agent.PSI virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Dynamic (imported) function loading detected
  • Performs HTTP requests potentially not found in PCAP.
  • Reads data out of its own binary image
  • A process created a hidden window
  • A HTTP/S link was seen in a script or command line
  • Unconventionial language used in binary resources: Russian
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • A scripting utility was executed
  • Uses Windows utilities for basic functionality
  • Attempts to modify desktop wallpaper
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config
  • Installs itself for autorun at Windows startup
  • A script process created a new process
  • Creates a hidden or system file
  • Uses suspicious command line tools or Windows utilities

How to determine VBS/TrojanDownloader.Agent.PSI?


File Info:

name: 25CBAB06A2B503EA9D0D.mlw
path: /opt/CAPEv2/storage/binaries/6d7d54d8ab8e09c983fb61755eeae0bd218d4036c75a5a90eb8338f5a734032a
crc32: DB4848EC
md5: 25cbab06a2b503ea9d0d27851ccc0792
sha1: 90c871a32339b795be58bd66a3060a752b7ea2bf
sha256: 6d7d54d8ab8e09c983fb61755eeae0bd218d4036c75a5a90eb8338f5a734032a
sha512: 197e4b47cd48082766f19c346e8d3cc31bb6dbe96602e5401a3bd183b02f1053c62a1ba5643a01fb27e0d2d733dbebd65cd9b7695a672df12084061fba1415f0
ssdeep: 6144:v0/I+cMNG0VFahXTApMtZy2+k4nzWfSvtnJB:czNGgFeDQ8OzWqvtnJB
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T19A749E93FEC18572C4625431E409D732993ABFA00AA4C89BA7EC3D7E7635092512DF3B
sha3_384: 49af8095313748d5ed42e910c87144e9596f70a9e7da41261db825caa9d10c9b74f0e5ad3c36b0514f8b027e23a0ded5
ep_bytes: e8ce040000e98efeffff3b0db8914300
timestamp: 2017-05-23 11:58:46

Version Info:

0: [No Data]

VBS/TrojanDownloader.Agent.PSI also known as:

LionicTrojan.Script.Generic.a!c
DrWebTrojan.MulDrop7.34244
MicroWorld-eScanTrojan.GenericKD.5715663
FireEyeGeneric.mg.25cbab06a2b503ea
McAfeeArtemis!25CBAB06A2B5
CylanceUnsafe
SangforTrojan.Win32.Vilodow.nmcle
K7AntiVirusRiskware ( 0040eff71 )
K7GWRiskware ( 0040eff71 )
CrowdStrikewin/malicious_confidence_100% (W)
CyrenJS/CoinMiner.E.V!Eldorado
SymantecTrojan.Gen.6
ESET-NOD32VBS/TrojanDownloader.Agent.PSI
Paloaltogeneric.ml
KasperskyUDS:Trojan-Downloader.Script.Generic
BitDefenderTrojan.GenericKD.5715663
NANO-AntivirusTrojan.Win32.Vilodow.erizef
AvastOther:Malware-gen [Trj]
TencentWin32.Trojan.Dldr.Hsjb
Ad-AwareTrojan.GenericKD.5715663
SophosMal/Generic-S
ComodoMalware@#aqfzj8x2ld0j
BaiduVBS.Trojan-Downloader.Agent.ui
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Dropper.fm
EmsisoftTrojan.GenericKD.5715663 (B)
IkarusTrojan-Downloader.VBS.Panaga
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftTrojanDownloader:Win32/Vilodow.A
GDataTrojan.GenericKD.5715663
CynetMalicious (score: 100)
AhnLab-V3Adware/Win32.Adload.C2133019
VBA32Exploit.UACSkip
ALYacTrojan.GenericKD.5715663
MAXmalware (ai score=99)
APEXMalicious
YandexExploit.UACSkip!mus0P5GZWYc
FortinetVBS/Miner.HK!tr
WebrootW32.Trojan.Script
AVGOther:Malware-gen [Trj]
Cybereasonmalicious.6a2b50
PandaTrj/CI.A

How to remove VBS/TrojanDownloader.Agent.PSI?

VBS/TrojanDownloader.Agent.PSI 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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