Backdoor

Backdoor.Script.LodaRat.b (file analysis)

Malware Removal

The Backdoor.Script.LodaRat.b 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 Backdoor.Script.LodaRat.b virus can do?

  • Attempts to connect to a dead IP:Port (2 unique times)
  • Possible date expiration check, exits too soon after checking local time
  • Detected script timer window indicative of sleep style evasion
  • A process attempted to delay the analysis task.
  • Expresses interest in specific running processes
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • Reads data out of its own binary image
  • A process created a hidden window
  • Drops a binary and executes it
  • Performs some HTTP requests
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • A scripting utility was executed
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Creates a hidden or system file
  • Attempts to modify proxy settings
  • Creates a copy of itself

Related domains:

z.whorecord.xyz
a.tomx.xyz
ipapi.co
ocsp.digicert.com

How to determine Backdoor.Script.LodaRat.b?


File Info:

crc32: 30BAF97F
md5: 075662d2595212f5e931b3295c949852
name: 075662D2595212F5E931B3295C949852.mlw
sha1: a3efe46e36d26df8dae578c418fb18aa63efed37
sha256: 2817fb46391c8a13e69f6f68a5897917090742257599237f3985f60f67736603
sha512: 29dfa7256239b9b5f7aed19fcad197cd9537a2f963421d27295d0ada93f554467a8993f2d1f4aa3f4921789e0a0e584515256f569e2726f2a77e075ce2a6410c
ssdeep: 12288:UXe9PPlowWX0t6mOQwg1Qd15CcYk0We1IyJWA3mKalvMeMHFUVSkQA:xhloDX0XOf4KLA3mBMbxA
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

Translation: 0x0809 0x04b0

Backdoor.Script.LodaRat.b also known as:

BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
MicroWorld-eScanAIT:Trojan.Nymeria.219
ALYacAIT:Trojan.Nymeria.219
CylanceUnsafe
Cybereasonmalicious.259521
CyrenW32/AutoIt.SM.gen!Eldorado
ESET-NOD32a variant of Win32/Autoit.DB
APEXMalicious
AvastAutoIt:KeyLogger-U [Trj]
CynetMalicious (score: 99)
KasperskyHEUR:Backdoor.Script.LodaRat.b
BitDefenderAIT:Trojan.Nymeria.219
Ad-AwareAIT:Trojan.Nymeria.219
SophosML/PE-A
BitDefenderThetaAI:Packer.0B6B4C6716
TrendMicroTROJ_HPUTOTI.SMO
FireEyeGeneric.mg.075662d2595212f5
EmsisoftAIT:Trojan.Nymeria.219 (B)
AviraHEUR/AGEN.1114575
ArcabitAIT:Trojan.Nymeria.219
GDataAIT:Trojan.Nymeria.219 (3x)
McAfeeAutoIt/Injector.h
MAXmalware (ai score=87)
TrendMicro-HouseCallTROJ_HPUTOTI.SMO
IkarusTrojan.Win32.Autoit
MaxSecureTrojan.Malware.300983.susgen
FortinetAutoIt/Agent.DB!tr
AVGAutoIt:KeyLogger-U [Trj]

How to remove Backdoor.Script.LodaRat.b?

Backdoor.Script.LodaRat.b 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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