Backdoor

Backdoor:Win32/Rescoms.B!bit (file analysis)

Malware Removal

The Backdoor:Win32/Rescoms.B!bit 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:Win32/Rescoms.B!bit virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Detected script timer window indicative of sleep style evasion
  • Reads data out of its own binary image
  • A process created a hidden window
  • Performs some HTTP requests
  • The binary likely contains encrypted or compressed data.
  • A scripting utility was executed
  • Detects Sandboxie through the presence of a library
  • Checks for the presence of known windows from debuggers and forensic tools
  • Attempts to repeatedly call a single API many times in order to delay analysis time
  • Installs itself for autorun at Windows startup
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization
  • Detects VirtualBox through the presence of a registry key
  • Anomalous binary characteristics

Related domains:

edgedl.me.gvt1.com
update.googleapis.com
directlink.cz

How to determine Backdoor:Win32/Rescoms.B!bit?


File Info:

crc32: 786423A3
md5: 05d6a41751d7a92eb6aa00c54d51e456
name: 05D6A41751D7A92EB6AA00C54D51E456.mlw
sha1: cbded43d919fe58f97e76b4975c6f2699a6a62da
sha256: 8727bb75e01c91bb1b102988ed2a2a7823b154ef2a224d163f1af5e738f659a4
sha512: 2abbdc86c2c9fc568e92918ad779239acfa5668ab3ea2b61109e9a9a5d997f2308249ae955085dc1b8e96d96a536b262d141680f2f02fd0bb0222ca4ef956487
ssdeep: 24576:zrXkPCCY614BwVtas65L6d1MpXVJ0wjCXcpRXybViYDgtQ1ur3gQH0B7SYg:XXaQ6SAyJ6fiXXyxiYstQOQQ/r
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Backdoor:Win32/Rescoms.B!bit also known as:

K7AntiVirusTrojan ( 005583261 )
LionicTrojan.Win32.Generic.4!c
Elasticmalicious (high confidence)
DrWebBackDoor.Wirenet.319
CynetMalicious (score: 100)
CAT-QuickHealTrojan.MauvaiseRI.S5249318
ALYacGen:Variant.Ransom.Serpent.5
CylanceUnsafe
ZillyaExploit.BypassUAC.Win32.371
CrowdStrikewin/malicious_confidence_60% (D)
AlibabaBackdoor:Win32/Rescoms.0782f111
K7GWTrojan ( 005583261 )
Cybereasonmalicious.751d7a
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.FWOY
APEXMalicious
AvastWin32:Malware-gen
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderGen:Variant.Ransom.Serpent.5
NANO-AntivirusExploit.Win32.BypassUAC.eojfgu
MicroWorld-eScanGen:Variant.Ransom.Serpent.5
TencentMalware.Win32.Gencirc.10bb14b1
Ad-AwareGen:Variant.Ransom.Serpent.5
SophosMal/Generic-S
ComodoMalware@#ue8hsi0ksopf
BitDefenderThetaGen:NN.ZexaF.34170.JzW@ayu76@ii
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Trojan.tc
FireEyeGeneric.mg.05d6a41751d7a92e
EmsisoftGen:Variant.Ransom.Serpent.5 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Autoit.jaf
WebrootW32.Trojan.Genkd
AviraHEUR/AGEN.1103409
eGambitUnsafe.AI_Score_100%
Antiy-AVLTrojan/Generic.ASMalwS.201B5FF
MicrosoftBackdoor:Win32/Rescoms.B!bit
ArcabitTrojan.Ransom.Serpent.5
GDataGen:Variant.Ransom.Serpent.5
AhnLab-V3Trojan/Win32.Generic.C1952617
McAfeeArtemis!05D6A41751D7
MAXmalware (ai score=84)
VBA32BScope.Backdoor.Wirenet
MalwarebytesMalware.AI.2261203163
PandaTrj/CI.A
RisingTrojan.Generic@ML.100 (RDML:ni1L2knHXSqraZtJewzWKw)
YandexTrojan.GenAsa!diyUI1P1KaA
IkarusTrojan.Win32.Krypt
FortinetW32/Generic.AC.3F00BC
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove Backdoor:Win32/Rescoms.B!bit?

Backdoor:Win32/Rescoms.B!bit 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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